---______ can we warn people not to swim here?
---By putting up signs.
A. How B. Why C. Where
My bike is broken. May I borrow？
| A．you | B．yourself | C．yours | D．your |
– Which of these two English books will you borrow?
– I’ll borrowof them. Because they are very interesting.
| A．either | B．all | C．neither | D．both |
Can you see ninein the picture?
| A．sheep | B．dog | C．pig | D．horse |
No one knows how the huge rocksand ___ without our modern machines eight hundred years ago.
| A．are cut; moved | B．were cut; move |
| C．are cut; moving | D．were cut; moved |
—Susan’s parents have bought a large house with a swimming pool.
—It be very expensive.
| A．must | B．can | C．mustn’t | D．can’t、 |