Our research has focused on a drug which is so _____ as to be able to change brain chemistry.
| A．powerful | B．influential | C．monstrous | D．vigorous |
—What’s the matter with you, Sandy?
—I’m _____ a bad cold. I think I am dying.
| A．recovering from | B．suffering from | C．catching up with | D．getting into |
Have you _____ your things, Bob? The train is leaving at 2:30 this afternoon, so we don’t have too much time.
| A．added up | B．hidden away | C．set down | D．packed up |
Try to _____ the children down. They’re too excited.
| A．put | B．calm | C．pull | D．push |
—What is your plan for the holiday, Paul?
—I’ll go on a trip to Yunnan Province with my family.
—_____.
| A．Have a nice time | B．Good luck |
| C．Come back soon | D．Congratulations |
—What’s Jack up to in the shoe shop? He’s there for ages.
—It’s ______ that he hasn’t decided which pair to buy.
| A．sure | B．obvious | C．confusing | D．curious |