41.A.simple B.mixed C.good D.bad
40.A.take on B.think up C.put on D.hold up
39.A.interested B.connected C.excited D.pleased
38.A.choice B.conclusion C.majority D.suggestion
37.A.on the tip of their tongue B.as a model
C.to be admired D.to hear from
36.A.respect B.admire C.satisfy D.hold
54.C 根据上句,学生已经都跑了,所以是对着空空的房间说“下课”。
53.C 此题的“be gone”= disappear,意思是“消失了”。
52.B 此题选用“There be”句型来表示一种存在的状况。