1. Some people who don’t like to talk much are not necessarily shy; they______ just be quiet people.                 [2009安徽, 29]
A. must B. may      C. should   D. would
2. —It’s the office! So you_____ know eating is not allowed here.
—Oh, sorry.                               [2009湖南, 30]
A. must B. will     C. may      D. need