37 B sharing -> share
38 D can -> could
39 B which -> who
40 B but -> so
IV
1 The date of the meeting will be changed again
2 Huy said that he was going to meet his father in front of the station
3 She can't cook as well as her mother
4 I wish i had a computer
5 It's been 2 years since i last met him
23 C are -> is