Question 33: Although Marry had a very high salary, she was still unhappy.
» In spite of having a very high salary, Mary was still unhappy.
In spite of + ving/noun: mặc dù ...
Question 34: I can't swim,
» I don't know how to swim.
how to do sth : cách để làm gì
Question 35: How long have known each other?
» When did you start knowing each other?
begin/stat + Ving: bắt đầu làm gì
Question 36: People believe that 13 is an unlucky number.
» 13 is believed to be an unlucky number.
People + believe + that + S + V+ O +
S + is/am/are + believed + to + V + O