You have to wear special clothing, a helmet and a life jacket ____ your raft gets turned upside down or sinks.
| A．so that | B．in order that | C．now that | D．in case |
—Do you mind me smoking here? —No, __________.
| A．a bit | B．not a bit | C．a little | D．not a little |
—Will you go to Mary's birthday party?
—No, __________ invited, I can't go to it. I'll be too busy then.
| A．if | B．unless | C．even if | D．when |
The boy's the equal of the girl, __________ intelligence is concerned, but he doesn't work hard at all.
| A．as far as | B．as soon as | C．as well as | D．as long as |
—The English exam is not difficult, is it?
—__________. Even Tom __________ to the top students failed in it.
| A．Yes; belongs | B．No; belonged |
| C．Yes; belonging | D．No; belonging |
At no time __________ other countries.
| A．China will invade | B．will invade China |
| C．will China invade | D．invade will China |