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报考地区
学习方向
重庆
A
learn
B
to learn
C
learning
D
learnt
正确答案 ：C
解析
本题考查固定搭配。 have difficulty in (doing) sth.为固定搭配，介词in之后跟动词-ing或名词， 故C项符合题意。故本题答案为C。
相关题集
2022年重庆民转公《综合知识（英语）》预测卷（初中段）
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