21.Little Tom could do nothing but .A.waited B.waiting C.wai

21.Little Tom could do nothing but .A.waited B.waiting C.wait D.to wait 22.made her mother angry.
21.Little Tom could do nothing but .
A.waited B.waiting C.wait D.to wait
22.made her mother angry.
A.Helen's married Jack B.Helen's marrying Jack
C.Helen's has married Jack D.Helen's marrying with Jack
23.The problem is worth .
A.discussing B.to discuss C.discussed D.to be discussed
24.He has never spent a day.
A.more worry B.most worrying C.more worrying D.most worry
25.Most of the people to the party were famous scientists.
A.invited B.to invited C.being invited D.inviting
26.The news sounds .
A.encouraging B.encouraged C.encourage D.to encourage
27.-Good morning.Can I help you?
-I'd like to have this package ,madam.
A.be weighed B.to be weighed C.to weigh D.weighed
28.anything about the accident,he went to work as usual.
A.Not known B.Known not C.Knowing D.Not knowing
29.to the party,Joan was greatly hurt.
A.Having not been invited B.Not having been invited
C.Having not invited D.Not having invited
30.by a policeman,the children crossed the street safely.
A.To lead B.Lead C.Leading D.Led