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1. peoples -> people
2. do -> does
3. in -> on
4. yesterday -> now
Câu 1: Which underlined word is stressed?
What is your favorite place of interest in the city?
A B C D
Câu 2: Which pattern does “Go away!” belong to??
A. OOo B. OoO C. OO D. OOO
Câu 3: This sports center is so small that it cannot _____ the demands of local residents.
A. set up B. face up to C. deal about D. keep up with
Câu 4: When I arrived at school, the school yard was already packed _____ new students.
A. with B. at C. to D. of
Câu 5: I have no idea _____ to do on the weekend.
A. how B. what C. who D. where
Câu 6: The new sports _____ has six tennis courts.
A. medium B. match C. complex D. game
Câu 7: It’s a great experience to be sitting comfortably in a _____ pulled by someone through the ancient streets.
A. rickshaw B. bicycle C. cart D. tricycle
Câu 8: I used to _____ a diary when I was a young girl.
A. keeping B. keep C. kept D. be kept
Câu 9: I’m bored with studying in class now. I wish I _____ bushwalking with my friends. It would be fun.
A. were going B. had gone C. am going D. go
Câu 10: My class suggested _____ to Phong Nha Cave since it is a famous natural wonder of Viet Nam.
A. travel B. travelling C. to travel D. travelled
Câu 11: How many letters _____ to them before you lost touch with them?
A. had you sent B. have you sent C. did you send D. do you send
Câu 12: All of us were relieved _____ the exams.
A. have passed B. to passed C. to have passed D. pass
Câu 13: Nothing is _____ than getting stuck in a traffic jam.
A. worse B. more badly C. better D. bad
Câu 14: - Lan: “Thanks a lot for your sound advice.”
- Minh: “____________________________”
A. Great! B. Cool! C. Well done! D. No worries.
Câu 15: - Jane: “I’m going to Delhi next week. What’s the best way to get around?”
- Peter : “______________________________”
A. Stay calm. Everything will be alright.
B. I understand how you feel.
C. It’s probably best to use rickshaws. They’re quicker than taxis, and quite cheap.
D. Yes, I have, actually. It’s an amazing place.
Câu 13: Tổng a – (–b + c – d) bằng:
A. a– b+ c – d B. a+ b+ c+ d C. a+ b+ c – d D. a+ b – c+ d
Câu 16: Hình vuông có:
A.4 trục đối xứng B.3 trục đối xứng C.2 trục đối xứng D.1 trục đối xứng
Câu 39: We would havegiven you a lift if we’d know you were coming this way.
A B C D
we'd know -> we had known
Câu 40: I had gone to see you if I’d known that you were ill.
A B C D
had gone -> would have gone
Câu 41:I think you should ………. up late at night.
A. stayed B. Staying C. stay D. to stay
Câu 42: If I ……….. again, I think that I would have succeeded.
A. had tried B. tried C. try D. trying
Câu 43: If you feel bored, you should …………. away for a few days.
A. went B. gone C. to go D. go
Câu 44: Water……….down hill if there weren’t gravity.
A. won’t run B. didn’t run C. wouldn’t have run D. wouldn’t run
Câu 45: If I ................ you, I wouldn’t buy that coat.
A. would be B. was C. were D. Am
Câu 46: What would happen if I…………. that red button.
A. had pressed B. press C. was pressed D. pressed
Câu 47: He will get fat if he ……… smoking.
A. stops B. had stopped C. did stop D. stopped
48. Sally……….the phone if she were in the room now.
A. will answer B. shall answer C. would answer D. answered
49. I wonder where Mai is. She should ________ here by now.
A. be B. is C. to be D. being
Câu 1:
Áp dụng BĐT Cô si cho 4 số dương, ta có:
\(a^4+b^4+c^4+d^4\ge4.^4\sqrt{\left(abcd\right)^4}=4abcd\)
Dấu "=" \(\Leftrightarrow a=b=c=d\)
Câu 2:
Gọi quãng đường AB là x km (x>0)
\(V_{tb}=\dfrac{S}{t}=\dfrac{x}{\dfrac{x}{\dfrac{2}{20}}+\dfrac{x}{\dfrac{2}{30}}}=\dfrac{x}{\dfrac{x}{40}+\dfrac{x}{60}}=\dfrac{x}{\dfrac{5x}{120}}=\dfrac{120x}{5x}=\dfrac{120}{5}=24\left(\text{km/h}\right)\)
Vậy ...
a: Xét tứ giác AECK có
AK//CE
AK=CE
Do đó: AECK là hình bình hành
Câu 1:
Ta có: \(ax+\left(2a-1\right)y+3=0\)
\(\Leftrightarrow\left(2a-1\right)y=-ax-3\)
\(\Leftrightarrow y=\dfrac{-ax-3}{2a-1}\)
Để (d) đi qua điểm M(1;-1) thì
Thay x=1 và y=-1 vào hàm số \(y=\dfrac{-ax-3}{2a-1}\), ta được:
\(\dfrac{-a\cdot1-3}{2a-1}=-1\)
\(\Leftrightarrow-a-3=-1\left(2a-1\right)\)
\(\Leftrightarrow-a-3=-2a+1\)
\(\Leftrightarrow-a+2a=1+3\)
hay a=4
Vậy: a=4
và hệ số góc của (d) là 4