---Have you seen Dr. Adams recently?
---No. He __________ Hong Kong for an important meeting. He’ll come back tomorrow.
| A．has gone in | B．has been in | C．has gone to | D．has been to |
—Could you please tell me_______?
—Sorry, you can turn to Mr. Lee for help.
| A．how long can man live without water |
| B．how long could man live without water |
| C．how long man can live without water |
| D．how long man could live without water |
Not only he but also his friends_______ eager to help those who lost their homes in the earthquake.
| A．was | B．were | C．is | D．are |
—I don’t care what the teacher thinks. — But I think you _______.
| A．can | B．may | C．should | D．must |
Melody has a great interest in planting flowers, but her sister ______. She can’t even stay in the garden for one minute.
| A．can’t | B．hasn’t | C．doesn’t | D．isn’t |
—Sometimes, Jim feels stressed, but he doesn’t know _______ about it.
—He can get help from his teachers.
| A．who to talk | B．when to talk | C．who to talk to | D．when to talk to |