单选;1.Controlling a class of school pupils calls ( ) all your

单选;1.Controlling a class of school pupils calls ( ) all your skill as a teacher.
a.up b.for c.off d.on2.Bob was upset when he found that they had gone to the party ( ) him.a.except b.without c.besides d.beside要解释!还有翻译（Please explain their anstwers and translate them,thank you）