154. _____, I have to put it away and focusmy attention on study this week. (2004上海春)

　A. However that story is amusing　　　　　　　　　 B.No matter amusing the story is

　C. However amusing the story is　　　　　　　　　　 D.No matter how the story is amusing

153. He left a message _____ you shouldcall back this afternoon for the doctor’s appointment.

　A. until　　　　　　　　　　 B.if　　　　　　　　　　　　　　 C.when　　　　　　　　　　　 D.that

152. I would appreciate it _____ you call backthis afternoon for the doctor’s appointment. (2003上海春)

　A. until　　　　　　　　　　 B.if　　　　　　　　　　　　　　 C.when　　　　　　　　　　　 D.that

151. -- Was his father very strict with himwhen he was at school?

　　 --- Yes. He even didn’tpraise him _____ he had become one of the top students in his grade.

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

150. -- Was his father very strict with himwhen he was at school?

　　 --- Yes. He will neverpraise him _____ he becomes one of the top students in his grade.

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

149. --- Was his father very strict withhim when he was at school?

　　 --- Yes. He had neverpraised him _____ he became one of the top students in his grade. (2003北京)

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

148. John shut everybody out of thekitchen. It seemed _____ he wanted to prepare a grand surprise for the party.

　A. which　　　　　　　　　 B.when　　　　　　　　　　　 C.so that　　　　　　　　　　　 D.as if

147. John shut everybody out of the kitchen_____ he was preparing his grand surprise for the party.

　A. which　　　　　　　　　 B.when　　　　　　　　　　　 C.so that　　　　　　　　　　　 D.as if

146. John shut everybody out of the kitchenin _____ he could prepare his grand surprise for the party.

　A. which　　　　　　　　　 B.when　　　　　　　　　　　 C.so that　　　　　　　　　　　 D.as if

145. John shut everybody out of the kitchen_____ he could prepare his grand surprise for the party. (2002全国)

　A. which　　　　　　　　　 B.when　　　　　　　　　　　 C.so that　　　　　　　　　　　 D.as if