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

The old man returned when the young volunteers__________ in his house.

A. were cleaning

B. was driving

C. drives

D. will drive

Đáp án
A. were cleaning

Câu hỏi thuộc Bài tập:

Đề thi thử tiếng Anh THPT Quốc gia 2023 (Mã đề 031)