need / come / to / class / explain / teacher / sit / at / through / the / home / not /and / may / lesson / to / us/ the / Internet lour / he

A. Our teacher may sit at home and explain the lesson to us. He need not come to class through the Internet.

B. Our teacher need not come to class. He may explain the lesson to us through the Internet and sit at home.

C. Our teacher need not come to class. He may sit at home and explain the lesson to us through the Internet.

D. Our teacher need not come to class he may sit at home and explain the lesson to us through the Internet.