【单选题】----Tom, you do the cleaning after school, ________ you? ---- Me again? But I did the cleaning yesterday!
【简答题】中国古代广告发展经历了哪些几个时期,简要概括不同时期特点
【单选题】–I called you yesterday afternoon, but you were not at home. --Sorry, I _________ some shopping with my mother then .
【单选题】钨极氩弧焊采用小电流焊接时,电弧的静特性曲线在U形曲线的 。
【单选题】---I called you yesterday, but no one answered. ---I ______ my car when you called me.
【判断题】狐狸不小心坐到了小推车上,就撞到了蜜蜂房,被蜜蜂追着跑。
【单选题】——Someone called you just now. ——I know. But I was busy at that moment. When I called back, there was no .
【单选题】— I called you at six yesterday, but there was ______ answer. — Did you? I ______ dinner at my friend's home. [ ]