Only when ________ be possible to sign the papers.
| A．does the boss come will it | B．the boss comes will it |
| C．has the boss come it will | D．the boss comes it will |
—How is your plan getting along?
—I can’t carry on ________ any longer.Someone must help me.
| A．single | B．simply |
| C．alone | D．lonely |
—Could you ________ take care of my cat while I’m away?
—Sure.Leave it to me，please.
| A．perhaps | B．possibly |
| C．maybe | D．probably |
—How do you find his advice?
—What he said sounded ________，I think.
| A．quite perfectly | B．nice and helpful |
| C．very clearly | D．polite or friendly |
—Be careful not to drop the Ming Dynasty vase.
—Yes，we can’t be ________.
| A．too careful | B．very careful |
| C．too careless | D．careless enough |
Thank god，you finally returned home ________.You can never imagine how I worried about you when I was told about the terrible accident.
| A．safely | B．safe |
| C．separately | D．cleverly |