HE ASKED ME ...•'••••••••• A. SINCE WHEN I AM WAITING...

ĐỀ THI OLYMPIC ĐỒNG BẰNG SÔNG CỮU LONG TRƯỜNG THPT THỊ XÃ SA ĐÉC

2. He asked me ...•'••••••••• A. since when I am waiting B. how long I have been waiting C. how long I had been waiting D. since when I waited