Ⅰ.单句语法填空
1．(2015·江苏，阅读B)Many wastes produced in the producing process are harmful ________ well.
2．Little Tom admitted ____________ (cheat)in the examination，____________ (promise)that he wouldn't do that in future.
3．The young man，who by then ____________ (admit)to university，decided to do some part－time jobs to pay for his education.
