1. Lan is more intelligent than her sister.
=>Lan's sister isn't as..........................................................................
2.A year has twelve months.
=>There are........................................................................................
3.We have a two -month summer vacation.
=>Our summer vacation lasts.............................................................
4.Will you please look after the house while we are away.
=>Will you please take........................................................................
5.Vietnamese students have fewer vacations than american ones.
=>American students..........................................................................
6.It takes me a bout two hours each day to do my home work.
=>I spend............................................................................................
7.Hoa is a hard student.
=>Hoa.................................................................................................
8.An drives dangerously.
=>An is...............................................................................................
9.I like roller skating and my brother does , too.
=>I like...............................................................................................
10.How much are these rackets?
=>How much do................................................................................
11.How about eating out tonight?
=>Why don't......................................................................................
12.It is twenty five to five.
=>It is thirt five...................................................................................
13.Philippa usually works hard.
=>Philippa is usually..........................................................................
14.I'm not as good at Math as my brother.
=>My brother is..................................................................................
15.Their father got to London by taxi last Monday.
=>......................................................................................................