It is known to us all E-mail is______efficient than sending a fax

Mr Wang is ________ Maths teacher. He teaches ________ Maths.

Though Tom was impolite to the new teacher，she________him his rudeness.

Shall we go to the movie tonight?　　　　　　　　　　　　　　—No, I’d rather 　　　　　　at home with our baby. You’d better not leave it to the babysitter at night.

253. I have to wear a _____ and a tie inorder to work in the manager’s office.