1. The teacher told us that scientist had searched for extraterrestrial life on other planets for decades ( cấu trúc câu gián tiếp, lùi thì từ quá khứ đơn => quá khứ hoàn thành : have => had )

2. It isn't easy to eat in weightless conditions ( Cấu trúc It's + adj + to + V : làm việc gì đó thì như thế nào đó )

3. Aliens might invade the Earth and do the same thing (might : có thể ở khả năng không cao)

4. Jupiter's moon Europa is so cold that the ice on the surface is probably as hard as rock (S + tobe + so + adj + that + Mệnh đề)

5. The atmosphere of Mars is too thin to breathe  (S + tobe + too + adj ( + for someone)+ to V : quá để làm gì ) 

6. Most students look for information to find the details on the Internet ( look for : tìm kiếm )

7. In the end thay succeeded in landing on the surface of the moon (succeded in + V-ing : thành công làm việc gì)

8. Teen prefer texting to talking face to face ( prefer V-ing to V-ing : thích làm cái gì hơn làm cái gì )

9. Apple Computer was found in Los Gatos, California by Steve Jobs on 1 April, 1976  ( Câu bị động quá khứ đơn )

10. Tim wanted to know whether we would have flying car by 2025 ( whether = if , câu gián tiếp )

1. The teacher told us that scientist had searched for extraterrestrial life on other planets for decades 

2. It isn't easy to eat in weightless conditions 

3. Aliens might invade the Earth and do the same thing 

4. Jupiter's moon Europa is so cold that the ice on the surface is probably as hard as rock   

5. The atmosphere of Mars is too thin to breathe  

6. Most students look for information to find the details on the Internet 

7. In the end thay succeeded in landing on the surface of the moon

câu 8,9,10 mk chưa làm được