He is busy.He keeps ____ these days. A work B to work C work

He is busy.He keeps ____ these days. A work B to work C works D working 要理由.
光明之心 1年前 已收到1个回答 举报

haiyu_5566 幼苗

共回答了20个问题采纳率:85% 举报

D
固定短语:keep doing sth
句意是:他很忙.这些日子他一直在工作.

1年前

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