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 |
On Sundays ,the retired(退休的）minster_____ come to the farm and work with the farmers.
| A．can | B．should | C． must | D．would |
When I got up early the next day , I found the air on the hill good ___________
| A．breathe | B．to be breathed | C．to breathe | D．breathing |
If you won’t do as I told you, you____ not go to the party.
| A．will | B．can | C．shall | D．need |
When his dad died, he felt ________his whole world was hopeless .
| A．in case | B．as though | C．so that | D．even though |
When ______ help, one often says “Thank you.” or “It’s kind of you.”
| A．offering | B．to offer | C．to be offered | D．offered |