Volunteers who work at community _____ all the love we can give them, since they offer so much but get so little reputation.
| A．reserve | B．serve | C．observe | D．Deserve |
Owen wouldn't eat anythinghe cooked it himself
| A． | until | B． | since | C． | unless | D． | while |
- I wonderyou'll water this kind of flower.
--Every other day.
| A． | how often | B． | how long | C． | how soon | D． | how much |
________ many times, he finally understood it. 
| A．Told | B．Telling | C．Having told | D．Having been told |
—Would you please help me with the box?
—_________
| A．Yes, please | B．No, please don’t | C．With pleasure | D．My pleasure |
—How about your journey to Mount Emei?
—Everything was wonderful except that our car _________ twice on the way.
| A．slowed down | B．broke down | C．got down | D．put down |