一、选择填空:( ) 1.We never visit a friend’s house without first.A.call B.to call C.calling

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一、选择填空:( ) 1.We never visit a friend’s house without first.A.call B.to call C.calling
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一、选择填空:( ) 1.We never visit a friend’s house without first.A.call B.to call C.calling
一、选择填空:( ) 1.We never visit a friend’s house without first.A.call B.to call C.calling

一、选择填空:( ) 1.We never visit a friend’s house without first.A.call B.to call C.calling
C

C.calling

We never visit a friend's house without calling first.
without介词 后面用动名词

C:Calling. without calling first 介宾短语

c

B

C calling

A

选C吧,without是介词,后面应该接-ing形式。

C without calling first

without介词 后面用动名词
C.calling