I’ll let you borrow the book but you must promise to return it next week.
A. If you promise to return the book, I let you borrow it.
B. If you promised to return the book, I’ll let you borrow it.
C. If you promise to return the book next week, I’ll let you borrow it.
D. If you promise to return the book next week, I won’t let you borrow it.
Đáp án đúng: C
Dịch: Nếu bạn hứa sẽ trả sách vào tuần sau, tớ sẽ cho cậu mượn.