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You cannot tell________looking at someone whether or not he has HIV.
#25403
A
without　
B
by
C
for　
D
with
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You require too much ______ me．It’s beyond my power．
#27649
A
at
B
in
C
of
D
with
He has some trouble ______ his classmates, but he has no trouble ______ doing his lessons.
#28276
A
with; with
B
in; in
C
with; in
D
in; with
 _____ all my teachers, Mr. Moore is the one who impresses me most.
#25542
A
At
B
On
C
To
D
Of
--- The kind-hearted lady is popular with her neighbors, right? --- Yes. She is always ready to help others without expecting anything _______.
#26058
A
in store
B
in return
C
in charge
D
in turn
______I used to go mountain—climbing every summer .
#28699
A
at a time
B
at one time
C
At times
D
At the same time