Circle the letter A, B, C or D to indicate the answer that best fits each gap in the following questions.

Câu hỏi

Before I started the car, all of the passengers ____________ their seat belts.

A. will buckle

B. have buckled

C. was buckling

D. had buckled

Đáp án
D. had buckled

Câu hỏi thuộc Bài tập:

ĐỀ LUYỆN THI VÀO LỚP 10 - QUẢNG NINH (Đề 20)