With the cooking ______ ,I went on ______ some sewing.
A. done;to do
B. being done;doing
C. to be done;doing
D. to have done;doing
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It is no use ______ your past mistakes.
A. regretting
B. regret
C. to regret
D. regretted
Her husband died in 1980 and had nothing ______ to her,only ______ her five children.
A. left;to leave
B. leaving;leaving
C. leaving;left
D. left;leaving
I am very busy.I have a very difficult problem ______ .
A. to work
B. to work out
C. to be worked out
D. to work it out
I would appreciate ______ back this affernoon.
A. you to call
B. you call
C. your calling
D. you’re calling
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