Having checked the doors were closed , and _________ all the lights were off, the boy opened the door to his bedroom.

  A. why             B. that              C. when             D. where

I shall take you to France ________ you are well enough to travel.

   A. quickly         B. directly         C. finally       D. happily

Have you noticed the problem ___ he is now in low spirit ? ____ come?

            A. where, What         B. that, How    C. in which, For         D. what, As

She put some soil in the box, then sowed the seeds carefully, and covered it with more soil. _______ she kept the box in the shade.

A. First             B. Finally          C. Generally           D. gradually

Driving a car without insurance can have _____ consequences.

A. uncertain         B. disastrous              C. potential      D. unworthy

It was in the lab___was taken charge of by our teacher____ they did the experiment.

A. which; that     B. where; which       C. which; where D. that;where

I would never speak to someone like that ________ they said something unpleasant to me.

A. even if        B. so that            C. as if          D. ever since

I got in touch with Charles ________ I received his letter.

A. when immediately B. soon                C. immediately   D. suddenly

On the chairs______, who had come to Dalian looking for jobs.

A．three young men sat                     B．sat three young men

C．did three young men sit                   D．three young men sitting

A. can we learn      B. we can learn    C. did we learn         D. learn we