Rewrite each of the following sentences in another way so that it means the same as the sentence pinted before.
Câu 1: I think that no city in the world is more beautiful than Paris.
I think Paris ……………………………………………………..
Câu 2: It is necessary that I post this letter tonight.
I……………………………………………………………………
Câu 3: You'd better not touch that switch.
If I………………………………………………………………..
Câu 4: People used to believe that the earth was flat.
It used ………………………………………
A.
B.
C.
D.