—How are you? —___________.
A. I’m twelve.
B. I'm fine, thanks.
C. I’m a student.
—Jerry, do you mind my pointing out your mistakes?
—Not at all. Your advice is ______ to me.
A. of value B. in short C. at work
—Cross the road carefully, ______ you will keep yourself safe.
—OK, I will.
A. or B. and C. but
—Tommy, don’t make a mess in your room.
— OK, mum. I will ______ my toys at once.
A. connect to B. play with C. put away
—Oh, you have made the same mistake again．
—______. I’ll be careful in future．
A. So have I B. So do I C. So I have
—I saw Jane on the street just now.
—It ______ be her. She went back to Canada yesterday.
A. can’t B. mustn’t C. needn’t