单选题：_____ the manager has arrived, we can begin our discussion r..

_____ the news, so far, has been good, there may be bad days ahead.A. When B. WhileC. IfD. As

When and where to go for the on-salary holiday still _____. [ ]A. are remained to decideB. is remaining to decide C. remain to be decidedD. remains to be decided

The landslide almost flattened the small town of Zhouqu, leaving 1,248 dead and 496 missing. I wonder how long it will be ____ the people there get over the shock.A. before B. whenC. since D. after

“No student,” the headteacher stressed, “_______ go out of the school after ten o’clock at night without my permission.”A．mustB．willC．shallD．may

He thinks I have spoken ill of him, ____ I'm always speaking well of him.A. whenB. and C. while D. on the contrary