Air and the sun's rays create much distortion, and whatever tends to _____ their influence is useful to the astronomer.
| A．exclude | B．eliminate | C．extinguish | D．impose |
—Mary said Leo works really hard.
—__________.
| A．So does he and so does she | B．So does he and so she does |
| C．So he does and so she does | D．So he does and so does she |
James took the magazines off the little table to make________for the television.
| A．room | B．area |
| C．field | D．position |
Those who suffer from headache will find they get________from this medicine.
| A．relief | B．safety |
| C．defense | D．shelter |
An experienced doctor usually judges a patient’s illness according to
the various________.
| A．signs | B．symptoms |
| C．signals | D．appearances |
If you’re looking for a ________，you can make it when it is on sale.
| A．price | B．bargain |
| C．cost | D．bill |