Even though the pure water is ____ gives sea water its main properties, the salinity of sea water affects both its weight and freezing point.
| A．the one | B．which | C．what | D．that |
_________I have to give a speech, I get extremely nervous before I start.
| A．Whatever | B．Whenever | C．Whoever | D．However |
Don’t defend him any more. It’s obvious that he ______ destroyed the fence of the garden even without apology.
| A．accidentally | B．carelessly | C．deliberately | D．clumsily |
--- It rained cats and dogs this morning. I’m glad we took an umbrella.
--- Yeah, we would have got wet all over if we__________ .
| A．hadn’t | B．haven't | C．didn't | D．don't |
—Why are your eyes so red? You _______ have slept well last night.
—Yeah, I stayed up late writing a report.
| A．can’t | B．mustn’t | C．needn’t | D．won’t |
Harry is feeling uncomfortable. He _____ too much at the party last night.
| A．could drink | B．should drink |
| C．would have drunk | D．must have drunk |