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【判断题】
离心泵按叶轮的吸入方式可分为单级泵和多级泵。A.
正确
B.
错误
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A.
if
B.
as soon as
C.
when
D.
since
【简答题】We shall see an exhibition of pain-tings if it _________ (not rain) tomorrow.A. doesn't rain
【简答题】Take an umbrella with you if it ______ tomorrow. A. rain B will rain C rains D is raining
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【单选题】I don't think it will rain, but I'll take an umbrella______it does.
A.
as if
B.
in case
C.
as though
D.
even if
【单选题】—There will be an English party this evening, if it doesn’t rain. —Great！ I’ll go and join you then.
A.
in the auditorium
B.
in public
C.
in time
D.
in the open
【单选题】It seems that it's going to rain. If I _____ you, I ______ take an umbrella with me. [ ]
A.
am, will
B.
was; would
C.
were; would
D.
were, will
【单选题】I don’t know if it _____. You’ll get wet if it ____. You’d better take an umbrella.
A.
will rain; will rain
B.
rain; will rain
C.
will rain; rains
D.
rains; rains
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