第二部分：英语知识运用（共两节，满分45分）
第一节 单项填空（共15小题；每小题1分，满分15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。
21. If the neighbors do not give any sweets, the children ________ play a trick on them.
A. can B. must C. need D. might
22. —Excuse me,_________?
—That’s ￡200 altogether, sir.
A. what does it cost B. is it the right amount
C. could I have the bill D. can I place an order
23. There are __________ products to be sold in the factory store. Which of the following is not correct?
A. a large number of B. a large amount of C. quantities of D. a great many
24. The government has to close those small factories to prevent the water of the river ________.
