1 . The headmaster decided to put ________ glass on top of the wall to prevent the boys ________ over it .

A．breaking ; climbing	B．broken ;   climbing
C．broken ; to climb	D．breaking ; to   climb

2 . I don’t think that the suggestion is perfect, but it would be worth _____.

A．putting forward

B．putting off

C．being put forward

D．of putting off

3 . Her father _________ in the USA for another year so that she could work toward her master's degree.

A．agreed her to say	B．permitted her stay
C．let her staying	D．approved of her staying

4 . Little Jim admitted ________ his mother’s favorite vase, but his mom did not punish him.

A．to break

B．in breaking

C．breaking

D．break

5 . I recommended ________ an English-Chinese dictionary, ________ I thought would be of great help to his studies.

A．buying; that

B．to buy; that

C．buying; which

D．to buy; which