4. By 2030, the number of schools in our city will have double.
A B C D
5. Some people are believing that there is life on the Moon.
A B C D
9. Someone has been smoking in this room because it is dirty.
A B C D
11. Don’t worry, I hope everything is going to be fine soon.
A B C D
12. Last year, my son was lost among the crowd while we have gone shopping.
A B C D
13. They have studied English before they went to London.
A B C D
14. At 6 a.m tomorrow, I will have been climbing the mountain.
A B C D
15. They are staying at the hotel in London. At this time tomorrow, they will travel to Thailand.
A B C D
16. Bythe end of next month, Lan will be learning English for 5 months.
A B C D
20. We are talking happily when Jane was coming in and shouted at us.
A B C D