Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

Câu hỏi

They had to wait until the manager came, _______ ?

A. didn’t they

B. hadn’t they

C. did they

D. had they

Đáp án
A. didn’t they

Câu hỏi thuộc Bài tập:

ĐỀ SỐ 3 - VŨ MAI PHƯƠNG