_____ for the breakdown of the school computer network, Alice was in low spirits.(2006年福建卷)

A. Blaming　 B. Blamed　 C. To blame　　 D. To be blamed

Many difficulties have ______ as a result of the changeover to a new type of fuel.
A. risen         B. arisen         C. raised       D. arose

I didn’t know Jane in Paris.How long here??

A.is;does she live?

B.was;has she been?

C.has been;is she?

D.were;has she come?

——Will $200 ____ the cost of the damage?
    ——I’m afraid not. I need at least $100 more.
　 A.do  B.include  C.cover  D.afford

Mr. Smith began to learn English _____ when he was ______.

A. in the 1950’s; in his sixties 　　　　　　　 B. in 1950; in the sixties

C. in the 1950’s; over sixty D. both A and C