they are jumping off the branch.句中的branch是什么意思,能表示树吗,为什么不用tree?

jumping-off they are jumping off the branch.句中的branch是什么意思,能表示树吗,为什么不用tree? They are ____ the jumping race. jumping,the,off,the,are,wall,children 连词成句 They are ____ tall____each other and they both like jumping. They are jumping a ditch.They jumped off the wall and ran off.请问这两句短语一个加了are 一个没有加是怎么个情况?难道是因为现在时和过去时么? 怎么问?才回答Yes,they are jumping 求：jumping off与jumping out off的使用区别The children are jumping off the wall.与The cat is jumping out of the tree.中jumping off 与jumping out of 有什么区别,使用时要注意什么? They are off to a great start. 翻译They are walking off the road. off 的用法they are off to a great start. Many new students find it hard to do all the study that has to be done; they find themselves putting off reading assignment(作业),jumping from one subject to another and not being quite certain what they are trying to do during a particular study s 2.Many new students find it hard to do all the study that has to be done; they find themselves putting off reading assignment(作业),jumping from one subject to another and not being quite certain what they are trying to do during a particular study The monkeys are jumping.（就划线部分提问划线：jumping) they are taking off from a space station是什么意思 The cat is jumping off the branch.变为被动语态 They are off to a great start.What does off mean here? 选择最佳的填空：1.__Kitt like playing the violin?--Yes,she___.a.Do,do b.Does,does c.Does,do2.Are the students jumping or running in the playground?a.Yes,they are .b.They are running.c.No.They aren't jumping.3.___triangle is this?It's Peter's.