Mark needs to learn Chinese ________ his company is opening a branch in Beijing.
| A．unless | B．until |
| C．although | D．since |
. This race was her last chance to win a place on the national team so everything was __________.
| A．dangerous | B．in stake | C．at stake | D．in charge |
I smell something __________ in the kitchen. Can I call you back in a minute?
| A．burning | B．burnt | C．being burnt | D．to be burnt |
If _________, the bird flu would produce a powerful poison that would kill the patients.
A. not treat B not treated C untreated D. Both B and C
We all know that, __________, the situation will get worse.
| A．not if dealt carefully with | B．if not carefully dealt with |
| C．if dealt not carefully with | D．not if carefully dealt with |
I spoke that slowly but I didn’t __________my meaning __________.
| A．come…across | B．get…across | C．get…about | D．get…ahead |