Prepositions 语法：介词用法小测验
在加拿大 1 : I might have a barbeque tomorrow night but it depends _____ the weather。 A onB ofC inD about 2 : I hate maths. I always have difficulty _____ long division. A. toB. withC byD. about 3 : Don't laugh _____ him, it's not kind. A. atB. und...华人论坛