s an order, you have no rightto refuse it; just_________.

We must ___ to the public the simple fact that drug are dangerous. [ ]

Let’s go and listen to Mr. Smith’s speech on Western culture, shall we— ______ It’s getting to the end.

（湖南省怀化市2014年高三第二次模拟考试）29. — When is he willing to lend his friends some money?— Only when ______ hard enough.

Not until all the fish died in the river, ____ how serious the pollution was.