— What do you think of the online courses? — I have been used to the style of online studying ___________________ Marc

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1. (2021·南岗模拟) — What do you think of the online courses?
— I have been used to the style of online studying ___________________ March, 2020.

A . in B . on C . since

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黑龙江省哈尔滨市南岗区2021年区域联盟英语双基阶梯训练(二)