单项选择题

Our planned visit to the United States ______ because we were unable to get the visas.

A. fell over
B. fell down
C. fell through
D. fell on
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单项选择题
My friends and I enjoy doing many of the same things. In that respect, we have a lot ______.
A. in similar
B. in particular
C. in common
D. in accordance
单项选择题
The student ______ continuing his studies when he had to return to his home country unexpectedly.
A. is considering
B. was considering
C. should consider
D. has considered
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