7. When and where to build the new factory________ yet.

　　A. is not decided

　　B. are not decided

　　C. has not decided

　　D. have not decided

　　8. The number of people invited________ fifty, but a number of them________ absent for different reasons.

　　A. were; was

　　B. was; was

　　C. was; were

　　D. were; were

　　9. Four-fifths of the workers here________ ________ workers.

　　A. is woman

　　B. are woman

　　C. are women

　　D. is women

　　10.No one but her parents________ it.

　　A. know

　　B. knows

　　C. is knowing

　　D. are knowing

　　11. The rest of the spelling exercises _______ as your homework.

　　A. is to be done

　　B. are to do

　　C. are to be done

　　D. will do

　　12. The rest of the food ________ in the refrigerator.

　　A. is to keep

　　B. are to keep

　　C. are to be kept

　　D. is to be kept

　　ANSWERS:B,D,A,C,C,B,A,C,C,B,C,D.

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