fall behind in 和be behind in 的区别~

fall behind in 和be behind in 的区别~ be carefully,or you will ___the tree A.fall behinbe carefully,or you will ___the treeA.fall behind B.fall down C.fall off C.fall into If you don't study hard ,you will ___sooner or later.选择填空A.fall in love. B.fall down. C.fall in . D. fall behind be behind in doing fall behind We must work hard,or we'll( )A fall down B fall over C fall behind D fall into给出答案并解析出意思和语法谢谢 ( ) 7. He dropped his stick in the race. He stopped it and of course he . A. to get; fell behindB. to get; fall behind C. getting; fell behind D. getting; fall off ( ) 8. Older people should politely. A. speak to B. be be behind in doing sth fall behind with sb 和 fall behind with sth 的意思分别是什么? I am be way behind in my letter writting 还有这里的way 和be behind in 的意思 be in love or fall 1.I don’t know what I would be doing today if I____the novels of Dickens when I was a primary school student.A.wouldn’t fall in love with B.hadn’t fallen behind C.hadn’t fallen in love with D.wouldn’t fall behind2.Our scholl ____the student fall behind的同义词 fall behind是什么意思 fall behind是什么意思 fall behind是什么意思 If you don't study hard,you will____ other students.A.fall behind B.fall after C.fall off 选择哪一个 并解释下每个词组的意思和区别. fall in love的单词什么意思和be in love 的区别