Chuyên đề 3: Thể bị động

Bicycles _______ in the driveway. A. must not leave B. must not be leaving C. must not be left D. must not have left

47/50

Bicycles _______ in the driveway.

must not leave

must not be leaving

must not be left

must not have left

Giải thích

Chọn C