-What's the matter? -The cook _____five minutes ago, and there are fifty dinners still to cook.(    )
#99843
A
left
B
leaves
C
has left
D
was leaving
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(2013·高考重庆卷)I felt very tired when I got home,and I________straight  to bed.
#99707
A
go          
B
went
C
had gone
D
have gone
Three fourths of the homework _______ today.
#103523
A
has finished
B
has been finished
C
have finished
D
have been finished