题目

1.In the dark street,there wasn’t a single person _______ she could turn for help.
A.that B.whom C.from whom D.to whom
2.Last term our maths teacher gave us so difficult an examination problem _______ none of us work out.
A.that B.as C.so that D.which
3.There’s no doubt _________ Mr White’s lecture will be a great success.
A.that B.whether C.if D.which
B 2.C 3.A

提问时间：2020-10-30

答案

三道题的答案及解析：
1.是D不是B.whom引导定语从句,同时后面的turn to sb是“向某人求助”,因此to不能没有.
2.选B不选C.因为定语从句中的work out缺少宾语,所以本句是as（因为前面有so修饰先行词）,as在从句中作宾语.而如果选择so that,则work out后面需要加it.
3.A that引导同位语从句,对doubt的内容进行说明.