根据答句写出问句。1、A:
B: There are thirty desks in the classroom.
2、A:
B: It's about three kilometres away.
3、A:
B: He is twenty years old.
4、A:
B: The pen is only ten yuan.
5、A:
B: It's half past ten.
6、A:
B: Twenty plus one is twenty-one.1、How many desks are there in the classroom ?
2、How far is it from here ?
3、How old is he ?
4、How much is the pen ?
5、What's the time ?
6、What's twenty plus one ?