1.有没有have experience of doing sth?还是只有have experience doing sth2.是不是除了完成时,助动词后都加动词原形?3.在初三年.to作介词的短语或语法有哪些?

1.有没有have experience of doing sth?还是只有have experience doing sth2.是不是除了完成时,助动词后都加动词原形?3.在初三年.to作介词的短语或语法有哪些? experience有没有复数形式 有没有什么时候experience可数? I have a lot of experience on math teaching这句话语法上有没有错误? have experience have experience a lot of experience有没有s I have a lot of experience on math teaching这句话有没有语法上的错误? have wide experience do you have any account receivable knowledge /experience他们是真的想问我有没有应收账款的知识,从事过这方面工作的经验? 谁 have experience in sex? 关于syracuse university的supplement,If you have had work experience,what skills and/or knowledge didi you gain?这个问题,如果没有work experience,要怎么回答? 也没有experience with sth? experience 有复数么 do you have any work experience experience为什么不用复数 SK.问两个短语的意思【have much experience in/of】have much experience inhave much experience of这两个有什么不同吗?各自的意思是什么?嘻嘻……） students who have few working experience.请问这句子有语法错误吗? 有关情态动词表推测的问题例1：Conserding his ability and experience,he ____ better.A.can have doneB.might have done应该选B,老师说没有can have done,因为can表能力时有时态区别,所以只有could have done,但有can't have