yesterday I helped him__the homeworkA do B does C did Ddoing

问题描述:

yesterday I helped him__the homework
A do B does C did Ddoing

A
held sb. do sth. OR help sb. to do sth.

A do

选A
help sb. do sth.

A
help somebody do something.
虽然是过去式,但是help后面的动词还是要用原形的。