Ex2. 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

Before they _____ their road trip, they filled the car with fuel.

A. begin

B. began

C. had begun

D. begin

Đáp án
B. began

Câu hỏi thuộc Bài tập:

ENGLISH 9- 26/12/2025