5000 câu trắc nghiệm Tiếng Anh 9 có đáp án - Phần 7

Mr. Black did teach that lesson along tome ago, but now he never remembers______ it.

7/20

Mr. Black did teach that lesson along tome ago, but now he never remembers______ it.

teach

teaches

taught

having taught

Giải thích

Chọn D