1 . It is highly important to prevent the environment from_________.

A．polluting

B．polluted

C．to be polluted

D．being polluted

2 . People who risked their lives to save others are worthy of _________ (remember). (所给词的适当形式填空)

3 . I’d appreciate ________ (give) the chance to deliver a speech. (所给词的适当形式填空)

4 . ________by a shark was what used to happen in those days.

A．kill

B．killing

C．killed

D．being killed

5 .         to a top university, as in China, is also what many American students have been dreaming of.

A．Admitted	B．Being admitted
C．Having been admitted	D．To have been admitted

6 . ________in a famous university is what most students wish for.

A．Educating

B．Educate

C．Being educated

D．Educated.

7 . Taking physical exercise regularly is an effective way to avoid being i________   (感染) with the flu. (根据中英文提示单词拼写)

8 . What worried the child most was ________ to visit his mother in the hospital. (根据句意填空)

9 . The boy lied to his parents in order to escape ________.

A．punish

B．to punish

C．punishing

D．being punished

10 . The little bird was do lucky that it just missed ________.

A．being caught

B．caught

C．having been caught

D．to be caught