The scientist has made quite a few discoveries, ______ of great importance to the whole world.
A.which I think they are | B.which I think are |
C.I think which are | D.that I think they are |
I was about to tell everyone the truth ______ she turned up.
A.while | B.when | C.as | D.till |
Helen is on time for everything. How ______ it be that she was late for such an important interview?
A. might B. can C. must D. may
While you are enjoying yourself in Beijing this time tomorrow, I ______ my mother do housework at home.
A.am helping | B.will help | C.would help | D.will be helping |
The e-mail, as well as the telephone, ______ an important part in daily communication.
A.is playing | B.have played | C.are playing | D.play |
Jumping out of ______airplane at ten thousand feet is quite _____exciting experience.
A./ ;the | B./ ;an | C.an;an | D.![]() |