—How often do I need to feed the birds?
—They ________ food every day，or they will be hungry.
| A．must give | B．mustn’t give |
| C．must be given | D．mustn’t be given |
I’m sorry I can’t play basketball with you this afternoon．I have _____ homework to do．
| A．too many | B．much too | C．too much | D．many too |
Can you come to my party ______ Saturday morning?
| A．in | B．at | C．for | D．On |
一How do they get to school?
一They ________ the subway．
| A．by | B．in | C．on | D．take |
Mr. Zhang ________ to school on the school bus every day．
| A．going | B．to | C．isn’t go | D．goes |
It takes rile an hour ______ to school by bike．
| A．get | B．to get | C．getting | D．gets |