6.— Would you mind if I sit here? — Certainly not. Please do. 【点拨】“Would you mind + if I... ?”用于礼貌地征求意见。该句型可以转换为“Would you mind my doing sth.? ”意为“你介意我做……吗?”形容词...
(1)If a better material ___, the strength of the part would have been increased. A. had been used B. had been using C. being used D. using (2)If you ___ that night, you might have been too late to get...
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