—Do you know the girl is talking with our teacher?
—Oh, she is my sister.
A.which B.what C.whose D.who
— Do you know when the bridge ?
—Yes, last year.
A.was built B.is built C.build D.builds
—Have you decided tomorrow?
—Yes. At the school gate.
A.how will we meet B.how to meet
C.where will we meet D.where to meet
—Your schoolbag is too old and small, David!
—Yes, but my mother is considering a new one for me.
A.buy B.buying C.bought D.to buy
I think it's __________ for the students to understand the passage. There are too many new words in it.
A.necessary B.negative C.impossible D.important
—Do you know how old the old man is?
—Maybe he is 70 years old, but I can't say it __________.
A.exactly B.quickly C.easily D.luckily