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

Most of the roads are in poor condition since they _________ a long time ago.

A. built

B. were built

C. had built

D. have built

Đáp án
B. were built

Câu hỏi thuộc Bài tập:

ĐỀ SỐ 11 - VŨ MAI PHƯƠNG