PART TWO LANGUAGE KNOWLEDGE
SECTION A
Directions: Beneath each of the following sentences there are 4 choices marked A, B, C and D. Choose the one answer that best pletes the sentence.
21. As the Internet is expanding day by day, the opportunities for crime as well.
A. has B. is C. have D. are
网友回答
解析：可联系答.案.网客服索取。