一批货物a吨，运走b吨，还剩a-b吨．______．
剩下的吨数是：a-b吨．
故答案为：正确．
Tom likes _______ TV at home. He _______ TV from seven to ten at the weekend. [ ]
A. watches; watch
B. watching; watches
C. to watch; watch
D. watching; watch
辨别下列句中加粗词的用法。
①夫以子之不遇时____________
为我吊望诸君之墓__________
②吾知其必有合也____________
观于其市__________________
