2000 câu trắc nghiệm tổng hợp Tiếng Anh 2025 có đáp án (Phần 39)

Jack ________ chess before so I showed him what to do.

304/500

Jack ________ chess before so I showed him what to do.

A hadn’t been playing

B didn’t play

C wasn’t playing

D hadn’t played

Giải thích

Đáp án: D