They discussed the issue of the world’s climate in Durban, South Africa several times but could come to no ________.
| A．end | B．conclusion | C．result | D．judgment |
—There is likely to be heavy rain tomorrow.
—_______, we’ll have to change the plan for the outgoing.
| A．If so | B．If not | C．Unless so | D．Unless not |
People have realized that they should go on _____ balanced diet and do _____ exercise every day.
| A．a; / | B．the; an | C．the; the | D．/; an |
________ your next high-adventure trip is scheduled, start preparing now.
| A．In case | B．Unless | C．Only if | D．Whenever |
Your ideas are very interesting, but we need suggestions to get us out of the mess.
| A．impressive | B．similar | C．practical | D．traditional |
Donald doesn’t have much patience — he often loses his _______.
| A．courage | B．mind | C．balance | D．temper |