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1. Listen! Do you hear someone _____ for help?

A. calling B. call C. to call D. called

2. 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

3. Last night, there were millions of people _____ the opening ceremony live on TV.

A. watch B. to watch C. watched D. watching

4. The man insisted _____ a taxi for me even though I told him I lived nearby.

A. find B. to find C. on finding D. in finding

5. The old man, _____ abroad for twenty years, is on the way back to his motherland.

A. to work B. working C. to have worked D. having worked

6. The first text books _____ for teaching English as a foreign language came out in the 16th century.

A. having written B. to be written C. being written D. written

7. Don’t leave the water _____ while you brush your teeth.

A. run B. running C. being run D. to run

8. When first _____ to the market, these products enjoyed great success.

A. introducing B. introduced C. introduce         D.being introduced

9. “We can’t go out in this weather,” said Bob, _____ out of the window.

A. looking B. to look C. looked D. having looked

10. My adviser encouraged _____ a summer course to improve my writing skills.

A. for me taking B. me taking C. for me to take D. me to take

11. _____ in the queue for half an hour, Tom suddenly realized that he had left his wallet at home.

A. To wait B. Have waited C. Having waited D. To have waited

12. We’ve had a good start, but next, more work needs ______ to achieve the final success.

A. being done B. do C. to be done D. to do

13. Anyone, once _____ positive for H7N9 flu virus, will receive free medical treatment for our government.

A. to be tested B. being tested C. tested D. to test

14. ______ your own needs and styles of communication is as important as learning to convey your affection and emotions.

A. Understanding B. To be understood C. Being understood D. Having understood

15. ______ time and labour, cartoonists generally draw the hands of their characters with only three fingers and a thumb.

A. To save B. Saved C. Saving D. Having saved