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【单选题】
________ on ten years of observation and study, Professor Wang announced that everyone dreams every night，whether they realize it or not.
A.
Basing
B.
Based
C.
Been based
D.
Having based
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刷刷题刷刷变学霸
举一反三
【单选题】We have to work hard, ______ we’ll lose the chance.
A.
therefore
B.
otherwise
C.
besides
D.
however
【单选题】Do you think shopping online will ________ take the place of shopping in stores?[ ]
A.
especially
B.
frequently
C.
merely
D.
finally
【单选题】．Please tell me how the accident _________ ．I am still in the dark.
A.
come to
B.
come by
C.
come across
D.
come about
【单选题】The digging will seem easier if you divide up the garden by marking_________small sections with your spade.[ ]
A.
down
B.
up
C.
with
D.
out
【单选题】The reason _____ he explained for his being late was _____ his alarm clock didn't work. [ ]
A.
why; because
B.
that; because
C.
/; that
D.
for which; that
【单选题】Though this has been written _____ the agreement, it is not protected _____ law.
A.
by; in
B.
in; with
C.
in; by
D.
by; with
【单选题】It is the first time that Martin has been to the South Pole, ________?
A.
isn’t he
B.
hasn’t he
C.
isn’t it
D.
hasn’t it
【单选题】This pair of shoes doesn't look good, but that pair is ____ better, I think.
A.
rather
B.
less
C.
even
D.
hardly
【单选题】—Did you write to Grace last summer? —No, but I'll ______ her over Christmas vacation.
A.
be seen
B.
have seen
C.
be seeing
D.
to see