In the crash he suffered severe i________ to the head and arms.

I have been p　　　　　　　　　　　 about this question for weeks now.

__________ from the moon, our earth, with water __________ seven percent of its surface, appear as a “blue ball”.

　 A. Seen, covered B. Seeing, covering　　 C. Seen, covering　 D. To see, to cover

I got caught in the rain and my suit ______.

A. has ruined　　　　　　　　

B. had ruined

C. has been ruined　　　　　　

D. had been ruined　　　

Visitors ______ not to touch the exhibits.
    A. will request B. requestC. are requesting  D. are requested

The computer system　　　　 suddenly while he was searching for information on the Internet.

A.broke down　　 B.broke out　　　 C.broke up　　　　　 D.broke in

Nike is good, kind, hard-working and intelligent; _____, I can’t speak too highly of him.
  A. as a result      B. in a word     C. by the way      D. on the contrary

______ the Atlantic Ocean crosses the equator, the trade winds cause a flow of water to the west.

A. That　　　 B. When 　　　 C. Where　　　 D. Though

We must consider these matters________，not separately.

A．as follows B．as a consequence

C．as a whole D．as a matter of fact