All that I have to do______to boot up my laptop and download more songs from iTu

游客2023-11-03  20

问题 All that I have to do______to boot up my laptop and download more songs from iTunes.

选项 A、is
B、are
C、was
D、were

答案 A

解析 主谓一致题。代词all作主语,表示物时,谓语动词应用单数形式;表示人时,谓语动词应用复数形式。that I have to do是定语从句,用来修饰先行词all,并不能影响主句谓语动词的单复数,但通过该定语从句的时态可知主句应用现在时,故选项[A]为答案。
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