1.A yule-log is a log of wood which people usuallyburn _____ Christmas Eve.
问题描述：
1.A yule-log is a log of wood which people usuallyburn _____ Christmas Eve.
A.at B.on C.in D.until
2.You should be careful with the _____ appliances; otherwise you will have a/an ______ shock.(electricity)
答
1、at
2、electrical
electric