________ is known to us all is that the old worker, for _______ life was hard in the past, still works hard in his seventies.
| A．As; whom | B．What; whose | C．It; whose | D．What; whom |
A New York couple have been killed in a car crash on their way to hospital，but the unborn baby________the accident.
| A．experienced | B．survived |
| C．escaped | D．fled |
________that the government can clear up official corruption，we are________about the future of our country.
| A．Convinced；optimistic | B．Convincing；optimistic |
| C．Convinced；pessimistic | D．Convincing；pessimistic |
．General Secretary，Xi Jinping stressed that cross－strait cooperation would be strengthened________the two sides could agree to oppose Taiwan independence.
| A．as long as | B．even if |
| C．unless | D．until |
World leaders have to face the fact that ________ global warming has become perhaps ________ most complicated issue.
| A．/；the | B．/；/ |
| C．the；the | D．the；/ |
I'm a fresh hand so I don't think I can do it well.
－________Something attempted，something done.
| A．Come on. | B．It just depends. |
| C．Why not? | D．I think so. |