6.　I’ll lend you my car _______ you return it intact.

A. so far as　　　　　 B. as long as　　　 C. unless　　　 D. until

5.It seemed only several minutes _______ he finished this painting .

A. after　　　　　　 B. before　　　　　 C. when　　　　 D. until

4.　_______ reason you may give , you ought not to have left homework unfinished.

A. What　　　　　　　 B. No matter　　　　 C. However　　　 D. Whatever

3.　It is a long time since I last saw you . This sentence means _______

A. I had seen you for a long time　　　 B. I have seen you for a long time

C. I haven’t seen you for a long time　 D. I saw you again before long

2.The price of diamond rings has risen sharply _______ the price of gold rings has gone down.

A. when　　　　　　　 B. as　　　　　　　 C. while　　　　　 D. otherwise

110. The United States of America _____one of the most developed countries in the world.

　A. is　　　　　　　　　　 B. are　　　　　　　 C. was　　　　　 D. were

109. The whole class _____the teacher attentively.

　A.　are listening to　　 B. is listening to　 C. are listening　D. is listening

108. Jane is one of the best students in her class who _____by their teacher.

　A.　are praised　　　　　 B. is praised　　　　 C. praised　　　 D. praising

107. Those who ____ in ____compositions， please hand them in this afternoon.

　A.　hasn‘t handed； his　　　　　　　　　　　 B. haven’t handed； their

　C.has handed； their　　　　　　　　　　　　 D. have handed； his

106. Three-fourths of the homework _____today.

A.has finished　　　　　　　　　　　　　　　　 B. has been finished　

C. have finished　　　　　　　　　　　　　　　 D. have been finished