27.i saw ann inthe library yesterday.You ____ her,she is still ab_英语解答

27.i saw ann inthe library yesterday.You ____ her,she is still abroad.
A)could not see
B)cann’t have seen
C)must not haveseen
D)had not seen
请问为什么选择B呢,

人气：179 ℃　时间：2020-03-24 13:21:53

解答

否定句中的猜测用 can't （你不可能看见她,她还在国外）
加油!不明白再问!