If you don’t like the drink you _____, just leave it and try a different one.
| A．ordered | B．are ordering |
| C．will order | D．had ordered |
________ you don’t lose heart, I’m sure you can pass the coming examination.
| A．Unless | B．If not | C．As long as | D．Although |
—How much of the foreign expert’s speech have you understood?
—Almost nothing. I wish I ________ harder at English.
| A．worked | B．had worked | C．would work | D．were working |
At the crossroads, you have to drive very ________ to avoid traffic accidents.
| A．quickly | B．cautiously | C．curiously | D．perfectly |
David has to admit the fact ________ he has fallen behind the others in his class.
| A．whether | B．that | C．why | D．when |
—Where are you going during the summer vacation?
—I’ve found a nice beach ________ I can enjoy swimming.
| A．that | B．when | C．where | D．which |