Giải giúp tớ Question 20. More than one-third of the world's mangrove forests and around 20% of the,world's coral reefs _____ in the last few decades.,A. have been destroyed B. have destroyed C. were destroyed D. destroyed,Question 21. Scientists have been studying different ecologies____thhe 00hh cntury.,A. for B. since C. in D. by,Question 22. There was lots of sunshine this weekend, but the temperaturegot up to $10^0C.$,A. even B. only C. still D. very,IV. WRITING,Part 1. Choose the option A, B, C or D to indicate the underlined part that needs correction.,Question 33. Everyone promised they would come, but in the end even Ted and Jack showed up.,A. would B. in C. even D. showed,Question 34. It is raining heavily now. It has rained since 2 o'clock.,A. is raining B. heavily C. has rained D. o'clock,Part 2. With suggested words, rewrite each sentence or combine two sentences into one new,sentence that has the same meaning.,Question 35. The boys began playing soccer at 2 o'clock. (since),$\rightarrow$ The boys _____.,Question 36. It's necessary for the government to pass a law against construction in heritage,sites. (should),$\rightarrow$ (The government )_____.,Question 37. I found the secret recipe for the delicious cake in the kitchen.,$\rightarrow$ It was in the kitchen _____.,Question 38. It's a good idea that the tourists help the locals clean up the beach. (should),$\rightarrow$ The tourists _____.,Part 3. Use the given words or phrases to make a complete sentence.,Question 39. sleep/ to/ earlier/ in/ Why /go/ the/ doesn't/ she/ evening?,$\rightarrow$,Question 40. You/ not/ drop/ trash/ when/ you/ visit/ heritage site.,$\rightarrow$

Question

Accepted Answer

20. A. have been destroyed
21. B. since
22. A. even

For Question 33, the answer is C. even.

For Question 34, the answer is D. o'clock

Here are the rewritten sentences with the suggested words:

35. The boys have been playing soccer since 2 o'clock.

36. The government should pass a law against construction in heritage sites.

37. It was in the kitchen that I found the secret recipe for the delicious cake.

38. The tourists should help the locals clean up the beach.

39. Why doesn't she go to sleep earlier in the evening?

40. You should not drop trash when you visit a heritage site.