1.There are many kinds of metals, ________.
A.each having its special properties.
B.Having its special properties.
C.One has its special properties.
D.Each has its special properties.
2.He remembered _______ to the zoo by his father when he was little.
A.being taken B. taking C. have been taken D. to have taken
3.The team really looks good tonight because the coach had them ______ every night this week.
A.practice B. to practice C. practiced D. practicing
4.______ in the air, fuels give off heat.
A.To burn B. Burned C. To be burned D. Being burned
5. ______ from space, our earth, with water covering 70% of its surface, appears as a “blue planet.”
A. Seen B. Seeing C. To be seen D. Having seen
6.Nobody can be set in motion without a force _____ on it.
A.act B. to act C. acting D. acted
7.He has already made up his mind. It’s no use ______ him.
A.try to persuade B. trying to persuade C. to try to persuade D. to try persuading
8.It is much easier to talk about social change than ______.
A.to bring it about B. to bring it on C. to bring it up D. to bring it out
9.There may be, somewhere outside the solar system, intelligent life ______ messages to us.
A.sends B. sent C. sending D. has sent
10.Beijing is now busy ______ the Olympic games which is to be held in the year 2000.
A.preparing for B. prepared for C. to prepare for D. prepare for
11.The scientist didn’t mind ______ and went on with his investigation.
A.laughing at B. to be laughed at C. being laughed at D. laughed at
12.Mr. Baker sent his son to the doctor _____ an X-ray check.
A.gives B. to give C. being given D. to be given
13.Mother warned _______ the electric lamp.
A.not to touch B. him not to touch C. him not touching D. him not to touch
14._______ is one of good properties of this metal.
A.light in weight B. Having been light in weight C. Be light in weight D. Being light in weight
15.He gave no opinion about the matter because he didn’t want to risk _______ in it.
A.to involve B. being involved C. to be involved D. involving
16.With tears on her face, the old lady watched the little boy _______ to a hospital.
A.send B. to be sent C. being sent D. sending
17.______ the book again, she discovered that she had missed a lot in her first reading.
A.While reading B. When read C. As reading D. In reading
18.Your experiment reports must be checked with care before ________.
A.handed them in B. them handing in C. being handed in D. handing them in
19.Mr. and Mrs. Smith didn’t expect the house ______ so well.
A.to be decorated B. to decorate C. be decorated D. decorating
20.She was sitting in an armchair ______ a book.
A.reading B. to read C. to be reading D. to have read
21.While he was climbing the high mountain, he had his leg _______.
A.broke B. break C. broken D. breaking
22.John suggested _______ anything about it until they found out more facts.
A.not to say B. saying not C. to say not D. not saying
23.You don’t object ______ you by your first name, do you?
A.for me to call B. me to call C. to my calling D. my calling
24.Helen apologized for ________ to attended the party.
A.her not being able B. her being not able C. her to be not able D. her not to be able
25.We were delighted to find the trees planted a year before ______ very tall.
A.growing B. being grown C. having been growing D. grown
26.They sent us their statement, ______ to get our support.
A.hoped B. to hope C. hoping D. having hoped
27.Arriving at the bus stop, _______ waiting there.
A.he found a lot of people
B.a lot of people were
C.he found a lot of people’s
D.people were found
28.Tom said that he wouldn’t mind ________.
A.to wait for us B. waiting for us C. wait for us D. for waiting us
29.Encouragement through praise is the most effective method of getting people ______ their best.
A.do B. to do C. doing D. done
30.I enjoy playing basketball and then ______.
A.taking a bath B. to take a bath C. take a bath D. took a bath