A、this B、it C、that D、which 答案：B

第20题 It hasn’t been decided yet ___ we are going to build physics lab.

A、that B、which C、what D、whether 答案：D

第1题 He picked up the book, the cover ___ had been torn.

A、of which B、which C、of whose D、of that 答案：A

第2题 ___ we will do next is still under discussion.

A、 That B、 When C、 Where D、 What 答案：D

第3题 Try your best ___ you’ll certainly succeed this time.

A、 so B、 and C、 or D、 for 答案：B

第4题 She remained silent, ___ her heart was heavy and her spirit low.

A、so B、though C、for

D、therefore 答案：C

第5题 He talked at the top of his voice, ___ he drew nobody’s attention.

A、yet B、instead C、so D、though 答案：A

第6题 Watch your step, ___ you might fall into the water.

A、 or B、 and C、unless D、but 答案：A

第7题 I got to the theatre just before the end of ___.

A、the act two B、act two C、act second D、the act second 答案：B

第8题 The United States of America has a population of over ___.

A、two hundred million B、two hundred millions C、two hundreds million

D、two hundred millions people 答案：A

第9题 It is reported that ___ people have entered for the competition.

A、hundreds B、hundred C、hundred off D、several hundred 答案：D

第10题 It is said that ___ children in this area were saved in the flood.

A、hundreds off

B、one hundred C、some hundreds D、hundred off 答案：B

第11题 Mary is a ___ girl.

A、seven years old B、seven-years-old C、seven-year-old D、seven-year old 答案：C

第12题 I suppose I can count ___ you for help in this matter.

A、of B、on C、at D、to 答案：B

第13题 I still remember the year ___ I first came to this beautiful city.

A、which B、in which C、that

D、for which 答案：B

第14题 I think that was the reason ___ the football team lost the game.

A、what B、why C、how D、which 答案：B

第15题 The reason ___ I’m writing is to tell you about a party on Saturday.

A、because B、why C、for D、as 答案：B

第16题 ___ is known to the world, Mark Twain is a great American writer.

A、That B、Which C、As D、It 答案：C

第17题 Meet me at the same place ___ you did yesterday.

A、that B、what C、which D、as 答案：D