Victor apologized for ______to inform me of the change in the plan. (2004上海春)

A. his being not able                           B. him not to be able

C. his not being able                           D. him to be not able

The flowers_______sweet in the botanical garden attract the visitors to the beauty of nature. (2004上海)

There is no light in the dormitory .They must have gone to the lecture,_____?（2004 上海春，31）

A.didn’t they    B.don’t they

C.mustn’t they     D.haven’t they

To keep healthy，Professor Johnson____ cycling as a regular form of exercise after he retired. (NMET 2004上海卷第54题)

A. took up　 　 B. caught on　　 C. carried out 　 D. made for

ccording to a recent US sursey,children spend up to 25 hours a week ____ TV.

A. to watch B. to watching C. watching D.watch (2004 上海 )