The old man warned us_____ here, it’s dangerous.
A. swim B. not to swim C. not swim
— What a shame ! It turned out to be a failure.
— We missed a process,_______ we could not succeed in the experiment.
| A．and otherwise | B．and therefore | C．or perhaps | D．but luckily |
—Are you firmly against any independence move by Taiwan?
—Of course. That’s ________ our basic interest lies.
| A．why | B．when | C．where | D．what |
You should be.You mustn't take any unnecessary risks until you are quite sure.
| A．dynamic. | B．desperate | C．considerate | D．cautious |
He said that not until the heavy snow blocked the express _________ how serious the weather was.
| A．did the tourists realize | B．the tourists realized |
| C．the tourists did realize | D．didn’t the tourists realize |
---What’s wrong with him?
----The picture he came across___his memory of a sad story in his childhood.
| A．put off | B．took off | C．set off | D．gave off |