_____ his knowledge of the mountainous country, John Smith was appointed as our guide.
| A．In spite of | B．On account of |
| C．Regardless of | D．Instead of |
Much to the couple’s comfort, their income is now double ________ it was five years ago.
| A．that | B．than | C．which | D．what |
Bruce Lee came to America with the ________ of realizing his dream.
| A．attention | B．intention | C．expectation | D．desire |
_________ is a growing world problem, and nowadays the United Nations and its member countries _________hard to deal with it．
| A．Desertification; are working | B．Desertified ; worked |
| C．Desert; work | D．Desertification; have worked |
I don’t like the way ___________ he talked to his mother.
| A．that | B．which | C．in that | D．what |
I’m sorry, but I didn’t see how we can get all this work you assigned_______ by next Tuesday.
| A．having done | B．done | C．being done | D．to do |