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Doctors are doing research to find out what happens physically when people _________ smoking.
#68334
A
quit
B
decline
C
depart
D
reserve
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Careless driving _______ a lot of highway accidents.
#81268
A
affects
B
makes
C
causes
D
results
Who ________a theory about black holes? 
#71224
A
slow down
B
put forward
C
absorb into
D
make room for
  The car _____ and soon it disappeared.
#77234
A
moved off
B
drove off
C
drove away
D
was moved away
I'd rather they ___ right now.
#80987
A
leave
B
didn't leave
C
don't leave
D
won't leave
They are going to ________an advertisement in the papers for the position of the sales director.
#68520
A
give out
B
put out
C
pull out
D
take out