60、Stop and listen to me carefully said the teacher.
A.to talk B.talking C.talk D.talks
59、When they walked along the river, they suddenly heard somebody for help.
A.call B.calling C.called D.to call
58、It was very late at night he still went on .
A.works B.worked C.working D.work
57、Mr Smith enjoys to light music.
A.listens B.to listen C.listening D.listen
56、I'm hungry. Please give me something .
A.eat B.eating C.to eat D.eaten
55、The doctor was busy on the woman at that time.
A.operate B.operating C.to operate D.operated
54、It's not easy a foreign language.
A.learns B.learn C.to learn D.learning
53、Sorry I've kept you for a long time.
A.wait B.to wait C.waiting D.waited
52、This maths problem is difficult. Let me it over.
A.to think B.thinking C.think D.thought
51、It's raining hard. You'd better .
A.go out B.not go out C.no to go out D.to not go out