11、With a lot of difficult problems _______, the manager felt worried all the time.

A. settled              B. to be settled      C. settling                  D. to settle

10、Our bad living habits will destroy the earth. Only by changing _______ we live can we save the earth.

A. that         B. what                                   C. how                D. where

9、Charlie Chaplin is considered ________ a great contribution to the film industry.
A. to make                                                       B. making                                           C. to have made               D. having made

8、He works as an engineer now, but he _______ on a farm for three years.

A. has worked             B. worked            C. was working         D. had worked

7、A war is so cruel that it always causes great losses, _____ has happened in Iraq and other countries.

A. what                      B. it         C. as                     D. one

6、— Sorry, I forgot to wake you up this morning.

—      

A. Go ahead.     B. Forget it.       C. Why not?          D. You’re welcome.

5、 Life is like a long race ______ we compete with others to go beyond ourselves.

A. why       B. what             C. that                D. where

4、—So can I ask you a few fairly straightforward questions?

    —No problem. I like ______ when people are open and direct.

A. that             B. this                          C. it                             D. them

3、________ he has been getting on well with his studies makes all of us happy.

A. Which              B. How                         C. What                       D. That

2、Don’t worry too much about ______ mistakes. They are _____ natural part of learning.

A. the, a                 B. 不填, a             C. the, 不填                 D. the, the