Tina, I have something important________you.
A.to tell B.telling C.tells D.tell
The boys volunteer three hours________up the park near their school.
A.to clean B.cleaning C.cleaned D.clean
He made us________by making faces.
A.laugh B.laughs C.laughed D.to laugh
Our teacher often asks us____________ questions in groups.
A.discuss B.to discuss C.discussing D.discussed
Although you may meet some difficulties, you should never _______.
A.get up B.grow up C.give out D.give up
Jack used to ________ to school by bus, but now he is used to _______.
A.go,walk B.go,walking C.goes,walking D.going,walking
