We don't know ___ to pay a visit to the old town.A.whetherB.ifC.thatD.which-英语

题目简介

We don't know ___ to pay a visit to the old town.A.whetherB.ifC.thatD.which-英语

题目详情

We don't know ___ to pay a visit to the old town.
A.whetherB.ifC.thatD.which
题型:单选题难度:偏易来源:不详

答案

A
宾语从句中,动词不定式前用whether而不用if。

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