The water of the Miyun Reservoir is regularly ______ to ensure the security of Beijing people’s drinking water.
| A．tested | B．checked |
| C．examined | D．inspected |
Compared with his sister, Jerry is even more_____to, and more easily troubled by , emotional and relationship problems.
| A．sceptical | B．addicted | C．available | D．sensitive |
—Must I turn off the gas after cooking?
—Of course. You can never be____ careful with that.
| A．enough | B．too | C．so | D．very |
I'm certain David's told you his business troubles. ______, it's no secret that he owes a lot of money to the bank.
| A．However | B．Anyway | C．Therefore | D．Though |
Although my grandfather is in his eighties, he is still as ________ as a young man and hates sitting around doing nothing all day.
| A．enthusiastic | B．intelligent | C．energetic | D．sensitive |
—John is very ______ .—if he promises to do something he’ll do it.
| A．independent | B．confident | C．reliable | D．flexible |