精选优质文档-倾情为你奉上动词不定式专题练习练习1 1. He seems _ the old lady.A. knowing B. to be knowing C. to know D. to be known2. Tom_when they spoke ill of him.A. happened to be passed B. happened to be passing by C. happened passing by D. happened to passed3. We all hope_ scientists. A. become B. to become C. becoming D. became4. The boy refused _ for climbing the tall tree.A. to pay B. to be paid C. being paid D. paying5. I happened _
