1 . It’s certainly not realistic ________ (remove) all plastic from your life, but some statistics may encourage you to reduce your single-use plastic footprints. （所给词的适当形式填空）

2 . The purpose of the research is________ more about the causes of the disease.

A．trying to find out

B．to try to find out

C．trying finding out

D．to try finding out

3 . When the boy said what he wanted to buy, the shop assistant pretended ________ him and went on chatting with others.

A．not to hear

B．to not hear

C．not hearing

D．not heard

4 . ________ Chinese language and culture abroad, the Chinese Ministry has opened over 500 Confucius Institutes around the world.

A．To promote

B．Promoted

C．Promoting

D．Having promoted

5 . Go on ________ the other exercise after you have finished this one.

A．to be doing

B．doing

C．with

D．to do

6 . It is exciting ________ competing athletes reach the other end of the swimming pool.

A．watch

B．watching

C．to watch

D．that

7 . ________most college graduates want to do is________the ideal job as soon as possible.

A．What, to find

B．When, to find

C．What, finding

D．When, to find

8 . The mother’s wish is________ her son to become a man with a generous heart.

A．raise

B．to raise

C．raising

D．to be raised

9 . The poor boy seems ________ the news that his father died in the car accident for there is no sign of sorrow on his face.

A．not to be known	B．not to have received
C．to have not received	D．not to know

10 . Her job is ________ patients in the hospital; but this weekend her task is ________ her granny.

A．nursing; looking after	B．nursing; look after
C．to nurse; to look after	D．nursing; to look after