think of think about与think over的区别？
think of, think about,think over,think for的区别为：含义不同、用法不同、介词不同。Helen，are you thinking of marrying Tom？I'll think about your suggestion，and give you an...
put off是动副短语，为什么后面可以加代词和ing形式？
这是惯用法,没什么道理可讲的,记住就是put off 延期They decided to put the meeting off until after Christmas.他们决定把会议推迟到圣诞节以后.Owing to the state of the ground,the match has...
辨析used to do, be used to do 和be used to doing
二，动词的过去式表示过去，used 为use 的过去式，所以used to do 为“过去常常做某事”，如:He used to get up late. 他以前总是很晚才起床。...