请教两道英语选择题：the children are
请教两道英语选择题：the children arenotallowedin untiltheschoolbell rings,（）the weather.
a whichever bwhateverc howeverdwherever
( )he hasmissedhischance,he"ll have to wait for the next round.
anow that b even thoughcso that daslongas
不要只讲答案，请讲一下几个词汇的区别和用法。
还有问题： my pleasure 和 withpleasure 和 it"sa pleasure 的意思是什么？