( )41.I bought the bread last week. It_____stale. You'd better not take it now.

　　A.is going B.was C.had been D.is about to

　　( )42.He had already known the news before I _____him of it.

　　A.had informed B.could inform C.would inform D.have informed

　　( )43.He_____for six years by the time he takes the IELTS examination next week.

　　A.studied English B.had been studying English

　　C.studies English D.will have been studying English

　　( )44.The school authorities and teachers _____over the advantages and disadvantages of the educational system.

　　A.were always argued B.were always arguing

　　C.had always argued D.had always been argued

　　( )45.When I saw her smiling face， I knew she_____the first prize of the speech contest.

　　A.has B.has had C.had had D.was having

　　( )46.The united States______fifty states.

　　A.consisted of B.is consisted of C.consistes of D.consists

　　( )47.The Chinese food_____delicious.

　　A.are tasted B.taste C.is tasted D.tastes

　　( )48.Your hair needs_____. You'd better have it_____tomorrow.

　　A.cutting; done B.cutting;to be done C.being cut;done D.to be cut;to be done

　　( )49._______，wood will soon burst into a flame.

　　A.Heating B.when heating C.Being heated D.When heated

　　( )50."How do you like your new position?" "I_____with it."

　　A.don't satisfy B.am not satisfied C.can't satisfy D.haven't satisfy

　　( )51.there are more than fifty proposals______at the conference.

　　A.discussed B.to be discussed C.discussing D.having discussed

　　( )52.By the end of last year the railway_______.

　　A.was being completed B.would be completed

　　C.had completed D.had finally been completed

　　( )53.By the time the author comes back from abroad， all the books_______.

　　A.will have punished B.will have been punished

　　C.will be punished D.have been punished

　　( )54.I wondered____to come for the party.

　　A.should he been asked B.he asked

　　C.if he should have been asked D.if he should have asked

　　( )55.Some forms of physical education_____by schools across the nation.

　　A.have been practised B.practised C.which practised D.have practised