1 . ______ us prepare for the exam, the teacher suggested reading through our notes.

A．To help

B．Helped

C．Helping

D．Being helped

2 . —I think the environment is terrible these years.
—Yes, it will be even worse________ the government takes action ________ it.

A．until; protect

B．unless; to protect

C．if; protecting

D．unless; protecting

3 . For the students of senior 3, every minute ________ full use of ________ our lessons will get them well prepared.

A．making; studying

B．made; to study

C．made; studying

D．to make; studying

5 . (2015·北京)___________the early flight, we ordered a taxi in advance and got up very early.

A．Catching	B．Caught
C．To catch	D．Catch

7 . Helen had to shout ________ above the sound of the music.

A．making herself hear	B．to make herself hear
C．making herself heard	D．to make herself heard

8 . _______ English well, one must have a lot of practice.

A．Speak

B．Speaking

C．To speak

D．Speaks

9 . ________ (catch) the early flight, we ordered a taxi in advance and got up very early. (所给词的适当形式填空)

10 .      ourselves from the physical and mental tensions, we each need deep thought and inner quietness.

A．Having freed	B．Freed
C．To free	D．Freeing