I am sorry you’ve been waiting so long, but it will still be some time __________ Brain gets back from his holiday

The secretary worked late into the night, ______ a long speech for the president.[ ]

The Chinese government has made theMid-autumn Festival a level holiday, _______people will have a day off. A.when B. which C.where D. since

It’s thirty years since we last met. — But I still remember the story, believe it or not, _____ we got lost on a rainy night. [ ]

lly, another ten volunteers ______ to work inthe new exhibition by the end of this week