About _________of the workers in that steel works are young people.
| A．third-fifths | B．three-fifths |
| C．three fives | D．three-fifth |
---Is there any present for me ?
---Of course .This necklace __you .
| A．is short for | B．is named for | C．is intended for | D．intended to |
The gravity on the earth is much ______ that on the moon, do you know why?
| A．as strong as | B．strong than | C．so strong than | D．stronger than |
_____ by a black hole, Li Yanping was so frightened at first, but he calmed down later and
tried his best to escape.
| A．Caught | B．Catching | C．To catch | D．Catch |
Mary has______ speaking dialects, so it is not surprising to see her communicate with the
people from different parts of this country easily.
| A．a gift for | B．trouble in | C．effects on | D．nothing to do with |
We don’t have to ________ every word that we don’t know when reading.
| A．look up | B．refer to | C．look for | D．look into |