6、 We had a few__________days of rest in mountain area.

　　A.quiet

　　B.silent

　　C.cool

　　D.peace

　　7、 Sometimes children have trouble__________ fact from fiction and may believe that such things actually exist.

　　A.to separate

　　B.separating

　　C.for separating

　　D.of separating

　　8、 __________ she finds out that you’ve lost her books.

　　A.As if

　　B.Even if

　　C.What if

　　D.Suppose that

　　9、 Between l974 and 1999，the nulnber of overseas visitors expanded__________28%.

　　A.for

　　B.by

　　C.to

　　D.from

　　10、 With oil prices keeping__________ ，people are hesitating whether to buy a car or not.

　　A.rising

　　B.arising

　　C.raising

　　D.arousing