Over the past few years, these companies have been able to maintain a steady (grow)___________ in their business.
第2题
第3题
第4题
A.changed
B.consisted
C.led
D.advised
第5题
(Over) (the past) few years, medical researchers (are searching) for a means (to control) AIDS virus
A.Over
B.the past
C.are searching
D.to control
第6题
A.being
B.to be
C.to have been
D.having been
第7题
A、position
B、stranger
C、applications
D、character
第9题
A.being
B.having been
C.to be
D.to have been
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