Question

句型转换（用两种形式改为同义句） 1.It is time for class. put your

句型转换（用两种形式改为同义句）
1.It is time for class. put your comic books away.
you___put your cimic books away.
you___ ___put your comic books awat.
2.your english is not good enough.read more to improve it.
you___read more to improve your english.
you___ ___read more to improve your english
3.keep your mobile phone off in class.
you___keep your mobile phone off in class.
you___ ___keep your mobile phone off in class.
4.do not make the same mistake again.
you___ ___make the same mistake again
you___ ___ ___make the same mistake again.

Answer 1

1. must.

   have to

2. should

   need to

3.    should

       had  better

4.    can not

      had better not