I.单项选择（本题共20小题，每小题1分，共20分）
从各题所给的四个选项中，选出可以填入空白处的最佳选项。
( ) 1. —Did the radio say______? —Yes, from Hunan.
A. how the bad rice came B. where the bad rice came
C. how did the bad rice come D. where did the bad rice come from
( ) 2. —Excuse me, sir, smoking _____ __in the gas station.
—Oh, I’m really sorry.
A. doesn’t allow B. isn’t allowed C. aren’t allowed D. don ’t allow
