This software______ protect computers from being attacked by viruses and it took my brother a long time to ______ how to start it.
| A．is intended for; come out |
| B．intends to ; turn out |
| C．is mean to; figure out |
| D．is meant for; work out |
—Could you give us an account about the big fire?
—OK. It was a Friday evening _______the fire broke out and ten persons were killed in it.
| A．where | B．on which | C．that | D．when |
____ is our belief that improvement in health care will lead to a stronger ,more prosperous economy.
| A．As | B．That | C．This | D．It |
Although ______ for many years, the two old sisters recognized each other at once.
| A．having been separated | B．being separated |
| C．having separated | D．had been separated |
－Surely you can turn to David for help.
－_______ He is the last one you can rely on.
| A．Get out of it! | B．Is that right? | C．I couldn’t agree more. | D．It’s up to you. |
The violent disturbances in Bangkok had progressed to a point ________ the police had to drive away the protestants with tear gas．
| A．from which | B．that | C．where | D．what |