第一卷 客观题 （共三节，总计80分）
第一节：单项填空(每题1分，共20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。
1．—Why are you so worried，Sherry?
—Well，Mom. I lost________diamond ring my boyfriend bought for me. Could you keep________eye out for it when you clean the house?
A．the；an B．a；an C．a；the D．the；the
2．The number of microbloggers（微博）________from 63.11 million by the end of 2010 to 300 million in 2012.
A．have grown B．has grown C．are growing D．is growing
3．Between the two parts of the concert(音乐会) is an interval （空闲），________the audience can buy icecream.
A．when B．Where C．that D．which
