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It took the scientists seven days to________Takla Makan________“the sea of death”.

A.climb;calling                                                B.through;called

C.across;naming                                               D.cross;named

Information technology is taught in most schools，__________we have entered the information society.

A.so                      B.while                 C.still                    D.for

The number of teachers in our college __________greatly increased last term.A number of teachers in this school __________from the countryside.

A.was; is                                           B.was; are

C.were; are                                        D.were; is

A vast area north of the Yangtze River__________by the first heavy snow of the new year,causing difficulties to the post-festival road transport.?

A.were affected

B.was affected?

C.had affected

D.has affected

Every student and every teacher ________.

A.are going to attend the meeting                       B.have attended the meeting

C.has attended the meeting                                D.is attended the meeting

—How about the walls??

—The walls are_________ thick.?

A.three-inch                                      B.three inches

C.three-inches                                    D.three inch?

The old building was founded_________ .?

A.in 1820s                                         B.in the 1820

C.in the1820s’                                   D.in the 1820s?

Without electronic computers，much of today’s__________advanced technology.?

A.will not have been achieved             B.have not been achieved?

C.would not have been achieved          D.had not been achieved?

I don’t know why he is late.?

—Nor do I.He__________an accident.?

A.could have had                               B.should have had?

C.might have had                               D.must have had?

__________beat Xiao Wang black and blue is not known.?

A.Whom               B.Whoever            C.Who                  D.What?