The porter (saw) that we were comfortably settled in our seats.

The porter (saw) that we were comfortably settled in our seats.
A.observed
B.looked at
C.made sure
D.be sure
为什麼答案选C
A,B的意思都跟题目(saw)一样啊
英语人气:623 ℃时间:2020-06-08 14:38:15
优质解答
A是观察(如星空,植物长势等科学观察)
B意为目不转睛盯着
D主语只能是第一人称
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