3． A good teacher should stimulate students to ----- with or

一个好老师应当激励学生提出有独创性的想法,选A.come up,come uo with表示提出,想出(问题,意见等)
come around为adj. 来(过访,转变),后面不可带with
come down为n. 降落(贬抑),come down with得(传染性的病),感染
come over 为v. 过来,过来,抓住,后面不带with