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举一反三
【简答题】There are some unique problems in international trade and companies doing business overseas must be aware of them.
【单选题】— Do you have any problems _______ your English? — No, I don’t. But I have some maths problems _______.
A.
on, to solve
B.
with, solving
C.
on, solving
D.
with, to solve
【单选题】Written applications should be sent to us in case ______ some problems with the electronic version.
A.
there will be
B.
there is
C.
there be
D.
there was
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