A number of sheep seen by us when we passed the field.. A. is B. are C. was D. w
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( )40. A number of sheep _________ seen by us when we passed the field..
A. is B. are C. was D. were
试题答案
D

( )40. A number of sheep _________ seen by us when we passed the field..
A. is B. are C. was D. were
D