6, My house is the oldest house on the street. -> No houses
7, I get to work in half an hour.
-> It takes
8, Do you have a cheaper computer than this?
-> Is this
9, How much is this dictionary?
-> How much does
10, It isn’t important for you to finish the work today.
-> You don’t
11, There are over eight hundred stamps in Tim’s collection.
-> Tim’s collection
12, How old is your father ?
-> What
13, How high is Big Ben Clock Tower ?
-> What
14, What is your son’s weight
-> How
15,What is the price of this face mask ?
-> How much does
16, How long is the Me Kong river ?
-> What
17, How wide is the west Lake ?
-> What
18,I don’t like beef . My mother doesn’t like beef , either.
-> I don’t
19,She is a teacher . I am a teacher ,too.
-> She is
20, Mr Thanh couldn’t enjoy the meal because of stomachache.
-> The stomachache prevented