People have planted a great many trees in order to ____wind and sand in the desert.
| A．hold down | B．hold up | C．hold back | D．hold out |
What he said made us deeply _____.
| A．move | B．moved | C．moving | D．being moved |
I saw him _____ behind the tree, thinking.
| A．sat | B．seated | C．seating | D．seat |
Maria would not go to the party, as she had no fine dress, no jewelry _____.
| A．to show | B．shown | C．showing off | D．to show off |
Would you like Helen _____ you since you have some difficulties?
| A．helping | B．to help | C．has helped | D．help |
Oliver climbed up the hill _____ swimming in the cold weather.
| A．to go | B．gone | C．going | D．go |