Does he ______every day?
| A．go home on feet | B．walk home | C．walk to home | D．go to home on foot |
_______ necessary for us _______ English well.
A.It’s; to learnB.It’s; learn C.That’s; learn
—Watching TV too much _______ bad for your eyes.
—I’ll go to bed right away.
A.beB.are C.is
We must keep our classroom______.
A. cleaning B. cleanC. to clean
—Would you mind _______ us in the game?
—Not at all.
A.joiningB.join in C.joining in
Don’t worry. We have _______ time to catch the train.
A . a fewB.lot ofC.plenty of