1. Mary received 100 dollars from her sister. She ________ the computer she wanted. It costs 200 dollars. A. wouldn't buy B. hadn't bought C. couldn't have bought D. didn't buy 2. Once Helen failed in her exam. She played too much. She ________ too much. A. shouldn't have played B. should play C. shouldn't play D. wouldn't have played 3. If I had liked that watch, maybe I ________ bought it. A. will have B. must have C. would have D. shall have 4. My mother told me that I _______ studied instead of playing game last night. A. might have B. should have C. would have D. must have 5. The women of this tribe ________ precious ornaments for slat because they didn’t have any salt. A. have traded B. traded C. would have traded D. could trade
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Sinh Học lớp 12
