You can take anything from the shelf and read, but please ______the books when you’ve finished with them.
A.put on | B.put down | C.put back | D.put off |
I visited Mr. Johnson during his stay in Shanghai he attended a most important conference there.
A.when | B.which | C.where | D.in which |
The time is drawing near food raised in space will directly benefit human below.
A.where | B.when | C.whether | D.why |
Electrical products no longer in use contain dangerous materials which can be released into the environment when they are _____.
A.taken apart | B.given away | C.fixed up | D.handed over |
There can be little doubt _____ bombing Libya would drive thousands more to take up arms.
A.why | B.Whether | C.that | D.How |
The train was crowded and I had to get into a carriage _______ there were already seven other passengers.
A.which | B.where | C.what | D.when |