33．---The floor is so dirty.

---I know. It ____ for weeks.

　　　 A．hasn’t cleaned　　 B．didn’t clean　　　 C．wasn’t cleaned　 D．hasn’t been cleaned

32．For years black people had been fighting for their rights , ______ many public places were opened to them .

　 A．As a result　 　　　　　　　　　　　　　　　　　　 B．As a matter of fact　

　 C．For some reason　 　　　　　　　　　　　　 D．However

31．_____ by his accent , the boy must have come from a North European country , say , Norway or Finland .

A．Having judged　 　 B．To judge　 　　　 C．Judged　 　　　　　 D．Judging

30．Tough as the task was, we _____ finish it ahead of time and therefore we were highly praised

　 for it.

　　　 A．would　　　　　　　　　 B．had to　　　　　　　 C．were able to　　 D．must

29．______ this village was extremely poor , the adults felt it was so important to keep the school going .

A．So long as　 　　 B．Even though 　 C．Just as　　　　　　　　 D．No matter how

28．---- Can you shoot that bird at the top of the tree ?

-----　 No， it’s out of ___________ .

A．range　　 　　　　　 B．reach　　 　　　 C．control　　　 　　 D．distance

27．The flu is believed _______ by viruses that like to reproduce in the cells inside the human nose

　 and throat.

　　　 A．causing　　　　　　　 B．being caused　　 C．to be caused　　　 D．to have caused

26．----- Tom came to work last Friday , but no one has seen him since.　

　 　---- _________ he have had an accident ?

　　　 A．Should　 　　　　　 B．Must　 　　　　　　 C．Might　　 　　　　　 D．Could

25．The boss suddenly _______ a new plan about the project .

A．came up with　 B．came along with　　　　　　　　　　　　　　　　 C．got along with　 　　 D．brought out with

24．I have many books which _________ from science fiction to cookery books.

A． range　 　　　　　　 B．add　 　　　　　　 C．contribute　 　　　　 D．take