If you had joined the chat room ten minutes ago, you _____________what we were talking about.
A. would know B. would have known C. knew D. had known
Food will include buffalo that________________ over an open fire .
A. roasts B. is roasting C. will be roasted D. had been roasted
My friend Tom stays at Internet bars above 8 hours every day ______, really a netter(网虫).
A. on average B. in charge C. up close D. for free
I have many friends, _____ some are businessman.
A. of them B. from which C. who of D. of whom
____ is certain, though, is that the mystery of Tutankhamun’s tomb has never been fully explained.
A. It B. What C This D As
Some time after the rockets and the space shuttle are _____, the rocket will _____ the space shuttle and ____ the sea.
A. set sail; broadcast; drop in B. ruled out; orbit; show up
C. stepped up; survive; fall for D. launched; separate from; fall into