As we all know，dark glasses can ________ the eyes from strong sunlight.
| A．prevent | B．care | C．help | D．protect |
I have been looking for this book for months, and _____ I have found it.
| A．at least | B．in no time | C．at last | D．at present |
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 |
His job at the hospital did not pay much, so he found another _____.
| A．on the rise | B．on the spot |
| C．on the decline | D．on the side |
Because the children keep interrupting her whenever she reads a book, she is always _____ her place.
| A．loosing | B．missing | C．losing | D．looking for |
Russia's withdrawal of its experts from China did not strangle (压垮) the Chinese people; _____ it stirred up their enthusiasm for greater exertions.
| A．on the other hand | B．on the contrary |
| C．to the contrary | D．in consequence |