从21—35各题所给的四个选项（A、B、C、D）中，选出最佳选项，并在答题卡上将该项涂黑。
21. The summer is already here, and it _____ to be a most severe one.
A. wants B. hopes C. promises D. wishes
22. According to the rules, students must not ____ their books during examinations.
A. read B. watch C. notice D. look at
