The doctors say that good diet, exercise and fresh air, all of which _____ the health and long life. 
#80948
A
lead to
B
refer to
C
stick to
D
contribute to
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I don’t know if he’ll be home tonight or not, you’ll just have to ____.
#77170
A
take an opportunity
B
take a chance
C
take a luck
D
take in part
I’ve got to the position ________ hard work.
#72540
A
by this means
B
by all means
C
by no means
D
by means of
He did all he could _____ . 
#81665
A
help me out
B
to help out me
C
help me out of
D
to help me out