问题补充:
During your English study, you will many difficulties.
A. come about
B. come out
C. come by
D. come across
答案:
A. come about
B. come out
C. come by
(答案→)D. come across
解析:这题考查词组辨析:come about发生,come out出版, come by经过, come across遇上,句意是:在你学英语的过程中,你会遇到很多困难。选D。