1.Sergeant Brown,_____ I showed my license,was very polite.

1.Sergeant Brown,_____ I showed my license,was very polite.
A.who B.whom C.to whom D.whose
2 They stayed in a country hotel,___ their sister worked.
A.which B.that C.where D.when
3.He traveled to the southern part of the country,____ he got many ideas for his book.
A.where B.which C.from which D.that
4.Helen has four friends,_____ are studying in a night school.
A.who B.all of whom C.without whom D.who all
5.Luckily,Mr.Brown was in chair,____ the meeting would have been a mess.
A.without whom B.with whom C.none of whom D.all of whom
6.The salesperson _____ I did the business left the company last month.
A.without whom B.whom C.with whom D.who
7.If you had come a few minutes earlier,you ____ the train.
A.could catch B.would catch C.would have caught D.must catch
8.If it _____ tomorrow,the match would be cancelled.
A.rains B.had rained C.has rained D.rained
9.It is recommended that computers _____ in the bank.
A.can be used B.are used C.have been used D.be used
10.We wish our teacher _____ us in our discussion last evening.
A.has joined B.had joined C.would join D.joins
11.We regret _____ you that you are dismissed.
A.to inform B.informed C.informing D.inform
12.I still remember _____ to the president on the first day at work.
A.being introduced B.to be introduced
C.have been introduced D.was introducing
13.Try _____ some salt in the soup.
A.to put B.put C.putting D.to putting
14.When the students saw their teacher,they stopped _____with each other.
A.to talk B.talk C.talked D.talking
15.Water _____ into a solid,we called it ice.
A.changed B.changing C.be changed D.is changing
16.Tom is running to the hospital with the finger _____.
A.is bleeding B.bleed C.bleeding D.blood
17.Business _____,companies found it easy to promote their products.
A.grew B.growing C.has been growing D.be grown
18._____ was hard to study physics.
A.She B.For her C.She found that D.It
19.It is no use _____ to a person like him.
A.talking B.for talking C.talk D.talked
20.The farmers work hard in the field with the sun _____ high in the sky.
A.hangs B.hung C.hanging D.was hanging