500 Câu trắc nghiệm ngữ pháp Tiếng Anh có đáp án - Phần 21

“I took an exam this morning. It was really hard.” “_______a lot before you tookit?”

73/375

“I took an exam this morning. It was really hard.” “_______a lot before you tookit?”

Have you studied

Did you study

Have you study

Do you study

Giải thích

Chọn đáp án B