(   ) 7.It is going to rain. You can’t leave the windows________.

      A. open         B. opened        C. opening      D. closed

(   )8.Is this the right way_________ after the pets?

      A. to look       B. looking      C. of taking care   D. to take care

(   )9.You should help_________ and learn__________.

      A. each other; each other             B. each other; others’

      C. each other; from each other         D. each other; by each other

(   ) 10.If you work harder, you’ll get__________ results__________ Chinese.

      A. good; in     B. better; in     C. good; at      D. better; at