When I arrived at home,I realized I_____ my purse in the cafe.
A. leaved
B. had left
C. being leaved
D. left
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The board demanded that we ______the matter at tomorrow's meeting.
A. discussed
B. (should)discuss
C. will discuss
D. discussing
By the end of this March,the factory ______ 20,000 cellphones.
A. would have produced
B. has produced
C. will be produced
D. will produce
With the problem _______,I felt proud of my achievement.
A. being solved
B. solved
C. solving
D. having been solved
Not _____the final examination,shewas laughed at by her classmates.
A. having passed
B. passing
C. passed
D. to pass