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He did what he could ________ his parents．
A．help
B．helps
C．to help
D．helping
Let him ________ you．
A．helps
B．help
He wants me ________ him．
help
helps
helping
to help
He can do the work himself without ________.
[ ]
A
B
C
D
Good food and exercise ______ me to study better.
C．helping
D．to help