Now let me tell you the work I have been doing with them. My job with the UN is not paid, but voluntary and as I said _______, I mainly visit countries where the UN has programs to help people.
A. before B. although C. even D. in case
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
