单选题 Chicago Public Schools began to employ foreign teachers because ______.

A、 there were not enough American teachers
B、 a program for foreign teachers was started.
C、 the school board was interested in foreign teachers
D、 foreign teachers taught better than American teachers

【正确答案】 A

【答案解析】本题从原文第一句话中可得出正确答案：Chicago Public Schools are going to great lengths to hire teachers—now the school district recruits teachers from other countries to help solve a shortage of teachers．