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【单选题】
It was in the lab____ was taken charge of by Mr Harris ____ they did the experiment.
A.
which; that
B.
that; which
C.
which ; where
D.
that; who
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【单选题】The harm the modern farming methods have done________the countryside is considerable.[ ]
A.
on
B.
to
C.
at
D.
for
【单选题】He said that his friend ________there three days before, but she was not there_______.
A.
had been; now
B.
has been; then
C.
had been; then
D.
was; now
【单选题】China's first Mars probe，Yinghuo1，was launched in the second half of the year 2011 and it was thefirst time that China ________ another planet.[ ]
A.
explored
B.
researched
C.
discovered
D.
invented
【单选题】_______ the general state of his health, it may take him a while to recover from the operation.
A.
Given
B.
To give
C.
Giving
D.
Having given
【单选题】______ , his work became famous for the absence of Rhyme at the end of each line . [ ]
A.
Once published
B.
When to publish
C.
After is published
D.
While publishing
【单选题】More than 100 students have entered for the competition and________ gains the most points will be the winner.
A.
anyone
B.
the one
C.
that
D.
whoever
【单选题】As we know,many Europeansthe continent of Americain the 16th century. [ ]
A.
explored
B.
developed
C.
opened out
D.
uncovered