Great efforts to increase agricultural production must be made if food shortage _____ avoided.
#100844
A
is to be
B
can be
C
has been
D
will be
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-----Are you still very busy?-----Yes, I ______ the report for the manager and it won’t take long.
#100851
A
have just finished
B
am just finishing
C
had just finished
D
am just going to finish
(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
I _____ to help you but I was not able to spare any time. I _____a paper last night and I’ll have to finish it today.
#102610
A
wanted; have been writing
B
had wanted; was writing
C
had wanted; wrote
D
have wanted; wrote
It i s the second time that the poor area_______.
#101272
A
had been visited
B
has been visited
C
was visited
D
is visited