II 语言知识及应用 (共两节，满分35分)
第一节 完形填空 (共10小题；每小题2分，满分20分)
阅读下面短文，掌握其大意，然后从21～30各题所给的A、B、C和D项中，选出最佳选项，并在答题卡上将该项涂黑。
Swine flu is a breathing sickness caused by a flu virus that mainly infects pigs. However, sometimes the virus can make 21 sick. That is what has happened in Mexico in the last few weeks.
The 22 is believed to have sickened at least two thousand people there. Mexican health officials doubt at least one hundred fifty-two people have 23 from swine flu. Many of those who died were young adults who were 24 before they became infected. Mexico has ordered schools nationwide not to 25 classes until at least May 6th. It has closed restaurants and churches. The government also stopped large gatherings for sports, concerts and similar events. But many Mexicans have 26 about the country’s health measures. There are angry reports that it’s difficult to send seriously sick people to hospital.
