一 单项填空（共30小题；每小题1分，满分30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。
1．Everything was returned to ________ by the army after the hurricane.
A．usual B．natural C．regular D．normal
2．—It's hot. Would you like some icecream?
—I'd like some, but I'm ________.
A．in a diet B．on a diet C．on diet D．in diet
3．My mother always gets a bit ________ if we don't arrive when we say we will.
A．anxious B．ashamed C．weak D．patient
4．What ________ did the doctor write you?
A．prescription B．instruction C．description D．information
