---- If you don’t know what the new words mean , ________- in a dictionary .
| A．look them up | B．look them down |
| C．look them after | D．look them over |
It's very important ______healthy food.
| A．eat | B．eating | C．eats | D． to eat |
I have a sore back. You should _____ down and rest.
| A．to lie | B．lying | C．lie | D．lied |
Reading in bed ____ eyes.
| A．is bad for | B．is bad at |
| C．is good for | D．is good at |
This question sounds _______ than that one.
| A．many more polite | B．much more polite |
| C．many more politely | D．much more politely |
Students often spend lots of time _____ their homework.
A to do B do C did D doing