Everyone should do what they can _the poor people in the world.
题目
Everyone should do what they can _the poor people in the world.
A.to help B.help C.helping D.be helpful
答案
A.to help 为正确选项.
what they can 是一个省略了do 的宾语从句,而后面的 to help the poor peopple in the world则是目的状语.
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