14. Day and night, the little boy is at his computer, playing computer games, as if ______ with them.

10.  My grandfather is such a forgetful person that he has to __ many things, even his daily meals.

29．Joined by their friends, Troy and Cabrella staged a musical _____ their experiences, hopes and fears about the future．

27．All the Chinese people are expecting the government’s four-thousand-billion financial plan ____ around the country, _____ to improve the current economic situation．

27. Nearly four hundred supermarkets in Beijing are preparing to dim their lights ________ the "Earth Hour 2010" on Saturday night.

34．More and more people shop online,________advantage of low prices.

31．In summer, food will go bad if_________in room temperature.

24．________fit, we ought to learn more about our body and be careful with what we eat.

33．A cool rain was falling_________with snow causing heavy traffic．
A．mixed                B mixing                  C．to mix                   D．having mixed

27．We tried hard，and eventually，we were able to get Mike______us his car just for a day．