hơi mờ nên đoán đại đáp án
37b is being repaired
38a wasn't invited
39b be taken care of
40b had been chosen
41a the police was attacked from behind
42 the meeting has to be held in this narrow room
43b the bridge was begun to be built two months ago
44b his photograph was shown on television
45c he was seen...the truck
46b he was made to do it
47d I have had my hair cut
48d a and b are correct
49d He is thought to have been born in a rich family.
50a it is impossible for this work to be done right now
51c the room is cleaned every day
52b all flights were cancelled because of fog
53a a new highway is being built around the city
54c a new hospital has been built near the airport
