One of the men was lying on the ground after...
Câu hỏi: One of the men was lying on the ground after _______ down by a piece of rock.
A. knocking
B. being knocked
C. knocking him
D. was knocked
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Đề luyện thi THPT Quốc Gia - Năm 2020 Môn thi: TIẾNG ANH !!