Bears ______ fat stores throughout the summer and fall to have energy enough to last them through their winter sleep.
| A．pack up | B．build up |
| C．bring up | D．take up |
I have lost one of my gloves. I ______ it somewhere.
| A．must drop | B．must have dropped |
| C．must be dropping | D．must have been dropped |
John, look at the time. ____ you play the piano at such a late hour?
| A．Must | B．Can | C．May | D．Need |
— What’s the name？
— Khulaifi. _____ I spell that for you？
| A．Might | B．Would | C．Can | D．Shall |
The general manager thought of______ problems before he made the final decision.
| A．a good many | B．a great deal of | C．lots | D．a plenty |
For a long time they walked without saying ____ word. Jim was the first to break ____ silence.
| A．the; a | B．a; the | C．a; / | D．the; / |