Question

무무

請問這題為什麼是C不是B呢？

B.
128. A power surge caused a two-hour
blackout, during ------- time workers
at 92 Lonsdale Street were unable
to use the elevators.
(A) those
(B) that
(C) which
(D) this

Answer 1

Gene

關代，that 的限制
1。表特殊必用that
例句，He is the first man that I fall in love with
2 。句中有動物與人必用that
3。前有介系詞或，不可用that
以上～

Answer 2

lanister

用that會變成介系詞（during)加名詞(that time)，詞性是時間副詞片語，可是時間副詞片語沒有辦法拿來連接兩個句子，還得要再加個and之類的連接詞才可以；用which 則變成關係副詞，後面可接子句，像when的詞性 一樣，只是這裡的during which time的意思不完全是when。