People must not leave bicycles in the hall.
A. Bicycles must not be left in the hall.
B. Bicycles in the hall must not being left.
C. Bicycles in the hall must not left.
D. Bicycles must been not left in the hall.
Đáp án đúng: A
Dịch: Xe đạp không được để ở trong hội trường.
I’ll let you borrow the book but you must promise to return it next week.