When I first arrived ________San Francisco,I had a difficult time ________certain aspects of the American way of doing things.
A.at;to understand | B.in;to understand |
C.in;understanding | D.at;understanding |
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When I first arrived ________San Francisco,I had a difficult time ________certain aspects of the American way of doing things.
A.at;to understand | B.in;to understand |
C.in;understanding | D.at;understanding |