It was some time later_____we realized the truth.
A.until B.before C.that D.since
我想問(wèn)的是,這個(gè)可不可以看作是一句強(qiáng)調(diào)句呢,選C為什么不行呢?
還有一題
All the flights ____because of the snowstorm,we had to take the train instead.
A.were canceled B.had been canceled C.having canceled D.having been canceled
我想問(wèn)B行不行?為什么?
還有
I can not say which wine is best___it is a ______of personal taste.
A.affair B.event C.matter D.variety
為什么要選C
還有最后最后一道呵呵
The book was written in 1946,____theenducation system has witnessed great changes.
A.when B.during which C.since then D.since when
但是我想問(wèn)since不是介詞嗎,可以放在when前面?那能不能幫我分析下這句話的成分呢,