According to a UN report,a number of animals and plants （ ）in the last 500 years
According to a UN report,a number of animals and plants （ ）in the last 500 years
A、has been disappeared B、has disappeared
C、have been disappeared D、have disappeared
为什么不选C
A、has been disappeared B、has disappeared
C、have been disappeared D、have disappeared
为什么不选C
英语人气：988 ℃时间：2019-08-17 23:16:16
优质解答
D在过去的500年时间里,主语是a number of animals and plants是复数形式,所以用have,而animals和plants不是被消失,而是消失,所以不能用be done的形式
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