MODULE 9 - Đại từ nhân xưng, Đại từ sở hữu và Đại từ phản thân

Before we ________ a computer, we ________ that typewriter to type our assignments. A. bought / have used B. are buying / use C. buy / have used D. bought / had used

68/100

Before we ________ a computer, we ________ that typewriter to type our assignments.

bought / have used

are buying / use

buy / have used

bought / had used

Giải thích

Chọn đáp án D