精选优质文档-倾情为你奉上动词不定式专题练习1. This company was the first _ portable radios as well as cassette tape recorders in the world.A. producingB. to produceC. having producedD. produced2. The purpose of new technology is to make life easier, _it more difficult.A .not makingB. not makeC .not to makeD. nor to make3. Helen had to shout _above the sound of the music .A .making herself hearB. to make herself hearC. making herself heardD .to make herself heard
