1.       ____ strong and powerful China will certainly benefit ____ whole world.

A ,A; /                 B. The; a            C. The; the         D.A; the

2. —What's wrong with Tom? He has been sitting there for hours.

  —A letter from his father _______ an attack of home sickness in him.

A. set out      B. set off             C. sent off       D. sent up

3. — I wonder if you have a single room for tonight.

—Sorry, I'm afraid we have ________at the moment.  

A. no one      B. nothing         C. none                             D. no