二、单项填空（共10小题；每小题1分，满分10分）
从A、B、C、D四个选项中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。
26. There is ______ American boy in our class and ______ boy can speak good Chinese .
A. an,the . B. an,an.
C. a,an . D. a, the.
27. The baby is sleeping.please speak ______.
A. loudly . B. clearly. C. quietly. D.politely..
28. ------ Jim, please help ______ to some bread .
------ Thank you.
A. himself . B. yourself .
C. herself D.myself.
