Chooe the correct answer
giúp mình các câu này ạ; kèm giải thích cách làm, công thức => 5 đ ạ
1. Smoke jumpers are ________descend into remote areas by parachute to fight forest fires.
A. firefighters B. when firefighters C. who, as firefighters D. firefighters who
2. It was the ragtime pianist Scott Joplin ________the "Maple Leaf Rag," perhaps the best known of all ragtime tunes.
A. wrote B. the writer of C. who wrote D. writing
3. In geometry, a tangent is a straight line ________a curve at only one point.
A. it touches B. whose touching C. its touching D. that touches
4. The size and shape of a nail depends primarily on the function ________intended.
A. which it is B. for which it is C. which it is for D. for which is
5. A keystone species is a species of plant or animal ________absence has a major effect on an ecologial system.
A. that its B. its C. whose D. with its
6. Seals appear clumsy on the land, ________are able to move short distances faster than most people can run.
A. but they B. which they C. they D. which
7. Most folk songs are ballads ________have simple words and tell simple stories.
A. what B. although C. who D. that
8. ________added to a liquid, antifreeze lowers the freezing temperature of that liquid.
A. That B. As is C. It is D. When
9. ________ through a prism, a beam of white light breaks into all the colors of the rainbow.
A. When shines B. It shines C. It is shone D. When shone
10. Well- ___________child often behaves quite differently from one who did not get good schooling.
A. education B. educated C. educate D. educating
11. When my grandfather was alive, he ________ morning exercises.
A. used to do B. use to do C. used to doing D. wasn't used to do
12. There is no __________ explanation for what happened.
A. scientifically B. scientist C. science D. scientific
13. –“I’ve passed my driving test.” –“_____________.”
A. It’s nice of you to say so. B. Do you?
C. Congratulations! D. That’s a good idea.
14. We ______ them before the reception yesterday
A. haven't met B. hadn't met C. didn't meet D. wouldn't meet
15. I could not _____ the lecture at all. It was too difficult for me.
A. make off B. take in C. get along D. hold on
16. Some sociologists believe that the _____ family is rapidly becoming a thing of the past.
A. basic B. closed C. immediate D. nuclear
17. Bill: “I'm having some friends over for lunch this saturday. Would you like to join us?'' Nancy: “_________.”
A. Can I take a rain check? B. Come on. it's your turn
C. Thanks, but I mustn't D. As a matter of fact, I do
18. The criminal knows the ________ of successful robberies.
A. trash and treasure B. part and parcel C. ins and outs D. close all
19. To buy this type of product, you must pay half of the money ________, and pay the rest on the day of delivery.
A. in advance B. in cheque C. in cash D. in charge
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