UNIT 1 TO UNIT 3I. HÃY CHỌN MỘT TỪ CÓ PHẦN GẠCH DƯỚI ĐƯỢC PHÁT ÂM KHÁC...

69. Mr. Brown said, "Could you please wait here about half an hour?"

A. Mr. Brown asked me if I had been able to wait there about half an hour.

B. Mr. Brown asked me if I could wait there about half an hour.

C. Mr. Brown asked me to wait there about half an hour.

D. Mr. Brown asked me if I was pleased to wait there about half an hour.