一What are you going to do this weekend?一Well，we’ll clean up the city parks _______ it rains .
#38406
A
if
B
until
C
while
D
unless
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The Smiths are watching the men’s table tennis match at the moment.
#37016
A
Mr. Smith
B
Mrs. Smith
C
The Smith family
D
Mr. Smith and his son
______do you this new book? -----It’s interesting.
#42917
A
What like
B
How think hard
C
What think of
D
How about think
--- _______ do you play computer?--- Once a week, only on Saturday evening.
#43512
A
How many
B
How much
C
How often
D
How long