are these the cars that ( ) repairing in the garageA need b must c shalld can

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are these the cars that ( ) repairing in the garageA need b must c shalld can

are these the cars that ( ) repairing in the garageA need b must c shalld can
are these the cars that ( ) repairing in the garage
A need
b must
c shall
d can

are these the cars that ( ) repairing in the garageA need b must c shalld can
答案选A need 需要,后接ing形式

选A
这些是需要修理的汽车么?

A答案,need做使役动词表被动时有两种用法;1. need+doing 2.need to be done 这里是-ing用法