---What do you think made Celia so happy?
--- ______ a prize in the recent competition.
| A．She won | B．Won | C．Winning | D．Because of winning |
The cost of organic food is higher thanof conventional food because the organicprice tag reflects more closely the true cost of growing the food．
| A．it | B．one | C．this | D．that |
Next door to ours,who seem to have settled in this community for quite a long time．
| A．arc living a black couple |
| B．arc a black couple living |
| C．live a black couple |
| D．do a black couple live |
Research found that children who drank mainly soda were more than twice as likely as those who drank no sodasigns of aggression．
| A．showing | B．shown | C．to show | D．show |
I can't remembermade the teacher give Mary the permission to leave the class earlier．
| A．that it was what | B．that was it what |
| C．what was it that | D．what it was that |
On their journey, they meet fellow adults in their 20s and 30slives haven' t lived up to their dreams．
| A．who | B．whose | C．when | D．that |