1 The room was filled by smoke

2 The river bank is covered by weeds

3 My coles used to be visited by John at weekends

4 Human life has completely been changed by Science and Technology

5 Is English taught here?

6 Will she be invited to your wedding party?

7 Were some exercises given by the teacher?

8 Is a poem going to be written by her?

9 Has the window of the laboratory changed?

10 Are big cake made for the party by her?

16– each ofus was given two exercise books by the teacher

17 – he will be told that news

18– enough money has been sent to these poor boys

19– i was paid a lot of money to do this job

20– the women in most countries in the world have been given the right to vote

21– it is believed that 13 is an unlucky number

22– it was rumoured that the man was still living

23– it was declared that she won the competition

24– it is known that english is an international language

25– it is thought that jack london's life and writing represent the american love of adventure

26– it is said that john is the brightest student in class

27– it was reported that the president had suffered a heart attack

28– it is thought that he has died a natural death

29– it was reported that the troops were coming

30– it was believed that the earth stood still

16) The teacher gave each of us two exercise books.

Each of us was given two exercises books by the teacher

17) Someone will tell him that new

He will be told that new

18) They have sent enough money to these poor boys.

These poor boys have been sent enough money

19) They paid me a lot of money to do this job.

I was paid a lot of money to do this job

20) They have given the women in most countries in the world the right to vote.

The women in most countries in the world have been given the right to vote

21) People believe that 13 is an unlucky number.

It is believed that 13 is an unluckly number

22. They rumoured the man was still living.

The man was rumoured to be still living

(Các câu đằng sau chủ yếu để mình luyện về cấu trúc S + be + thought/said/rumoured/declared/reported/believed.... to V/have V3 ...)

Những câu nên dùng cấu trúc it + be + thought/said/rumoured/declared/reported/believed.... that.... chỉ khi khó viết theo cách trên thôi nhé, ko nên lạm dụng

Complete the second sentences so that it means the same as the sentence before
1 i am interested in watching cartoon movies after school
i adore
2 if Lan doesn't exercise regulary, she wont be able to lose weight
unless Lan
3 Althought the storm was terrible,no one was injured
despite
4 where did the flood happen?(occur)
5 ill pick you up. i leaves the shopping mall(as soon as)
6 it takes us ten day to prepare for our wedding day.
we spend
7 study hard or you wont pass the exam
if..
8 its a good idea to find safe shelter right away when there is a tornado warning
you

1 hw want to make a complaint about the laptop(complain)

He want to complain about the laptop
2 there's no need to bargain at a shopping mall (dont)

You don't have to bargain at a shopping mall
3 the dress i bought are bigger than the one ones you advertised online(smaller)

The dress you advertised online is smaller than the one I bought
4 my mother goes to the grocery store five time a week(usually)

My mother usually goes to the grocery store five times a week
5.let's something to drink in that court (why)

Why don't we drink in that court?
6 john hates eating cabbages and peas (never)

John never eats cabbages and peas
7 i spent the whole morning browsing online for a new laptop. (took)

It took me the whole morning to browse online for a new laptop
8 its her fifteenth birthday next week (will)

She will be fifteen years old next week

Cách tiến hành:

Thử trước để thấy amoni làm giấy quỳ tím tẩm nước đổi sang màu xanh. Bỏ một mẩu giấy quỳ tím tẩm nước vào gần đáy ống nghiệm. Lấy nút có dính bông được tẩm dung dịch amoniac (từ dung dịch này, khí amoniac sẽ bay ra), đậy ống nghiệm.

Hiện tượng – giải thích:

Ta thấy quỳ tím ẩm trong ống nghiệm dần dần chuyền sang màu xanh do hơi NH3 từ trong bông đậy ống nghiệm bay ra.

Do \(MNPQ\) là hình bình hành (gt)

\(\Rightarrow MN=PQ\)

Mà \(QI=\dfrac{1}{3}PQ\left(gt\right)\)

\(\Rightarrow QI=\dfrac{1}{3}MN\)

\(\Rightarrow\dfrac{QI}{MN}=\dfrac{1}{3}\)

Do \(MNPQ\) là hình bình hành (gt)

\(\Rightarrow MN\) // \(PQ\)

\(\Rightarrow MN\) // \(QI\)

\(\Rightarrow\dfrac{QI}{MN}=\dfrac{QE}{EN}=\dfrac{1}{3}\)

\(\dfrac{QE}{EN}=\dfrac{1}{3}\Rightarrow EN=3QE\)

Mà \(EN+QE=NQ=18\left(cm\right)\)

\(\Rightarrow3QE+QE=18\)

\(\Rightarrow4QE=18\)

\(\Rightarrow QE=\dfrac{18}{4}=4,5\left(cm\right)\)

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