问题

Teachers recommend parents _____their children under 12 to ride bicycles to school for safety. [ ]

A: not allow
B: do not allow
C: mustn't allow
D: couldn't allow

正确答案是：

同类题型

others think about you isn’t important. The key is you should be self confident.

It was April 29, 2011 _____ Prince William and Kate Middleton walked into the palace full of the wedding ceremony[ ]

He is not ____ to be present at the meeting tonight.

My father is able to _______many different kinds of computers.

What are you doing for your vacation—________________________.