The computers made by our company sell best, but several years ago no one could have imagined the role in the markets that they ________. 
#100355
A
were playing
B
were to play
C
had played
D
played
推荐题目
 She ___ volleyball regularly for many years when she was young.
#99986
A
was playing
B
played
C
has played
D
had played
—Are these seats available?—Sorry, sir. The seats ________.
#99452
A
have reserved
B
are reserved
C
reserved
D
are reserving
Who would you rather _____ the meeting instead of you?
#103441
A
attend
B
have attend
C
have attended
D
have to attend
-Why does the river smell terrible?-Because large quantities of water______.
#100039
A
have been polluted
B
is being polluted
C
has been polluted
D
have polluted
 Since last year I____ him only once.
#103740
A
have seen
B
have been seeing
C
see
D
was seeing