Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
The children______“thank you” to you when you gave them the gifts.
A. must have said
B. would have said
C. might have said
D. should have said
Đáp án D.
A. must have said: chắc hẳn đã nói
B. would have said: sẽ đã nói
C. might have said: có lẽ đã nói
D. should have said: lẽ ra nên nói
Tạm dịch: Lũ trẻ lẽ ra nên nói lời cám ơn bạn khi bạn trao quà cho chúng.