______ you study harder, you’ll fall behind others.
A.Once B.Unless C.Until
--- Will you go to Lucy’s birthday party this Sunday, Li Lei?
--- Iif you.
| A．do, go | B．will, go | C．do, will | D．will, will |
Mom makes me eat an apple a daythe doctor away.
| A．keeps | B．is kept | C．to keep | D．keeping |
Yesterday we had a ________ meeting in the meeting room.
| A．two-hour | B．two hours | C．two-hours | D．two-hour’s |
TonyFrank likes three-D films. They think it is harmful for their eyes.
| A．Neither, nor | B．Either, or | C．Both, and | D．Not only, but also |
Yoube hungry after the long walk. Help yourself to some cakes.
| A．should | B．must | C．need to | D．ought to |