English THPT II. Give the correct tense or form of the verbs in brackets.

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The world is getting warmer and the oceans are rising. Why _________ this (1. happen) ________________________? One answer is that it could simply be part of a natural process. After all, there (2. be) __________________ ice ages and long periods of warmth, so we could just (3. experience) ________________________ another warming trend. This kind of answer (4. have) _______________ more supporters a few years ago. What scientists now (5. believe) ______________ is that human activity is the cause. For more than two hundred years, human (6. gradually/change) __________________________ the atmosphere, mainly as a result of industrial pollution. We (7. create) ______________ an atmosphere around the earth that, like a giant glass container, (8. let) _____________ heat from the sun through and then (9. hold) _____________ it in. _______________ temperatures and sea levels (10. keep)____________ rising? The general answer is unfortunately yes.
ANH CHỊ GIÚP EM GIẢI VS Ạ .MONG ĐC GIẢI THÍCH.xin cảm ơn

 

[S I M O]

The world is getting warmer and the oceans are rising. Why is this (1. happen) happening? (Vì hành động này đang diễn ra <dựa câu 1>) One answer is that it could simply be part of a natural process. After all, there (2. be) has been (xảy ra trong qk để kq tới ht) ice ages and long periods of warmth, so we could just be experiencing another warming trend. This kind of answer (4. have) had more supporters a few years ago (QK). What scientists now believe is that human activity is the cause. For more than two hundred years, human (6. gradually/change) has been gradually changing the atmosphere, mainly as a result of industrial pollution. We have created (hđ chưa kết thúc trong HT, bắt đầu trong QK) an atmosphere around the earth that, like a giant glass container, (8. let) lets heat from the sun through and then (9. hold) holds it in. Will temperatures and sea levels (10. keep) keep rising? The general answer is unfortunately yes.
Let và hold là của vế glass container nha

Tham khảo giải thích lý thuyết ở đây nha~