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1 tháng 6 2021

Researches on COVID-19 began to be carried out by scientists in 2020

1 tháng 6 2021

researches on COVID-19 began to be carried out by scientists in 2020

 

3 tháng 4 2017

I, hãy đổi các câu sau sang thể phủ định

1. we haven't moved anything since they sent you aways to cure you

2. we are to pity rather than despise these homeless boys

we aren't to pity rather than despise these homeless boys

3. I can assure you I will arrange everything in time

I can't assure you I will arrange everything in time

4. my parents did not let me go to school this morning because I was sick

5. they say that he is the richest man in the town

they say that he isn't the richest man in the town

6. we say Dr.Johnson leave his office at 4 o'clock this afternoon

we say Dr.Johnson doesn't leave his office at 4 o'clock this afternoon

7. mother has promised me a bike if i pass the exam

mother hasn't promised me a bike if i pass the exam

8. they awarded him the first prize for this good deed

they didn't award him the first prize for this good deed

9. scentists began to carry out researches on AIDS in 1980

scentists didn't begin to carry out researches on AIDS in 1980

10. he ought to have finished the report yesterday

he ought not to have finished the report yesterday

3 tháng 4 2017

thank you

16 tháng 8 2018

Bài 1 : Đặt câu hỏi cho từ in đậm

1. My parents are going to stay at Ha Long for 2 days.

=> How long are your parents going to stay at Ha Long ?

2. I will write a letter to my boy friend tonight.

=> Who will you write a letter to tonight ?

3. We are going to visit HCM city next month.

=> Where are we going to visit next month ?

4. My sister will be 15 years old next Sunday.

=> How old will your sister be next Sunday ?

16 tháng 8 2018

Bài 2 : Đổi câu bị động

1. Does Tom have to make a new report on rubber trees?

=>Has a new report to be made on rubber trees by Tom?

2. What will you do next Sunday?

=>What will they be done next Sunday?

3. My parents will take me to the zoo next Sunday.

=>l will be taken to the zoo by my parents next Sunday

4. You shouln't paint the door red

=>The door red shouldn't be painted

5. They suggested collecting waste paper for recycling.

=>Waste paper was suggested collecting for recycling

6. Must we do those difficult exercises?

=>Must those difficult exercises be done?

7. What can you buy for your house

=>What can you be bought for your house?

8. He used to write poems in English

=>Poems used to be written in English

9. Nobody could solve this prombles

=>This problems could be solved

10. Scientists began to carry out researches on AID in 2000

=>Researchers began to be carried on AID by scientists in 2000

11. You ought not to let him play games to much.

=>He ought not to be let play games too much

23 tháng 4 2023

A

8 tháng 8 2021

b

7 tháng 1 2022

1, carry out

2,  working

3, are

4, to invent

5, attempts

6, invented

7, organizing

8,  be developed

9,  to consider

10, be wanted

IX. Fill in each of the numbered blanks passages below with ONE suitable word. (2.0 points)Scientists are still learning about COVID-19, the disease (1)___________by the coronavirus, but according to the CDC, this highly contagious virus appears to be most commonly spread during close (within 6 feet) person-to-person contact through respiratory droplets.“The means of transmission can be through respiratory droplets produced when a person coughs or sneezes, or by direct physical contact...
Đọc tiếp

IX. Fill in each of the numbered blanks passages below with ONE suitable word. (2.0 points)

Scientists are still learning about COVID-19, the disease (1)___________by the coronavirus, but according to the CDC, this highly contagious virus appears to be most commonly spread during close (within 6 feet) person-to-person contact through respiratory droplets.

“The means of transmission can be through respiratory droplets produced when a person coughs or sneezes, or by direct physical contact (2)___________an infected person, such as shaking hands,” says Dr. David Goldberg, an internist and infectious disease specialist at New York - Presbyterian Medical Group Westchester and an assistant professor of (3)___________at Columbia University Vagelos College of Physicians and Surgeons.

The CDC also notes that COVID-19 can spread by airborne transmission, although this is less common (4)___________ close contact with a person. “Some infections can be spread by exposure to (5)___________ in small droplets and particles that can linger in the air for minutes to hours,” the CDC states. “These viruses may be able to infect people who are (6)___________than 6 feet away from the person (7)___________ is infected or after that person has left the space. These transmissions occurred within enclosed spaces that had inadequate ventilation.”

Finally, it’s possible for coronavirus to spread through contaminated surfaces, but this is also less likely. According to the CDC, “Based (8)_____________ data from lab studies on COVID-19 and what we know about similar respiratory diseases, it may be possible that a person can get COVID-19 by (9)___________ a surface or object that has the virus on it and then touching their own mouth, nose, or possibly their eyes, but this isn’t (10)___________ to be the main way the virus spreads.”

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IX. Fill in each of the numbered blanks passages below with ONE suitable word. (2.0 points)Scientists are still learning about COVID-19, the disease (1)___________by the coronavirus, but according to the CDC, this highly contagious virus appears to be most commonly spread during close (within 6 feet) person-to-person contact through respiratory droplets.“The means of transmission can be through respiratory droplets produced when a person coughs or sneezes, or by direct physical contact...
Đọc tiếp

IX. Fill in each of the numbered blanks passages below with ONE suitable word. (2.0 points)

Scientists are still learning about COVID-19, the disease (1)___________by the coronavirus, but according to the CDC, this highly contagious virus appears to be most commonly spread during close (within 6 feet) person-to-person contact through respiratory droplets.

“The means of transmission can be through respiratory droplets produced when a person coughs or sneezes, or by direct physical contact (2)___________an infected person, such as shaking hands,” says Dr. David Goldberg, an internist and infectious disease specialist at New York - Presbyterian Medical Group Westchester and an assistant professor of (3)___________at Columbia University Vagelos College of Physicians and Surgeons.

The CDC also notes that COVID-19 can spread by airborne transmission, although this is less common (4)___________ close contact with a person. “Some infections can be spread by exposure to (5)___________ in small droplets and particles that can linger in the air for minutes to hours,” the CDC states. “These viruses may be able to infect people who are (6)___________than 6 feet away from the person (7)___________ is infected or after that person has left the space. These transmissions occurred within enclosed spaces that had inadequate ventilation.”

Finally, it’s possible for coronavirus to spread through contaminated surfaces, but this is also less likely. According to the CDC, “Based (8)_____________ data from lab studies on COVID-19 and what we know about similar respiratory diseases, it may be possible that a person can get COVID-19 by (9)___________ a surface or object that has the virus on it and then touching their own mouth, nose, or possibly their eyes, but this isn’t (10)___________ to be the main way the virus spreads.”

0