1. This company was the first ____ portable radios as well as cassette tape recorders in the world.>>
A. producing B. to produce C. having produced D. produced >>
2. The purpose of new technology is to make life easier, ____it more difficult.>>
A .not making B. not make C .not to make D. nor to make >>
3. 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 >>
4. I don’t know whether you happen_______ ,but I am going to study in the U.S.A this September.>>
A .to be heard. B. to be bearing C .to hear D .to have heard >>
5. The news reporters hurried to the airport, only ______the film stars had left.>>
A .to tell B .to be told C .telling D .told >>
6. You were silly not _______your car.>>
A. to lock B. to have locked C. locking D. having locked >>
7. The teacher asked us ______so much noise.>>
A .don’t make B. not make C. not making D .not to make>>
8. An army spokesman stressed that all the soldiers had been ordered _____clear warnings before firing any shots.>>
A .to issue B. being issued C. to have issued D. to be issued>>
9. I’d rather have a room of my own, however small it is, than_______ a room with someone else.>>
A. to share B. to have shared C. share D. sharing>>
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