— ______ his bike is lost?
— He has to go to school on foot.
| A．How about | B．What if | C．Can you tell me | D．I don’t know |
Can you help me ________ my homework?
| A．of | B．with | C．to | D．for |
The teachers ________ on the blackboard with chalk in the future.
| A．isn't writing | B．didn't write | C．don't write | D．won't write |
- ________ book is this?
-- It's Mary's.
| A．Whose | B．Where | C．How old | D．How many |
There ________ some tomatoes and milk in the box, but now there aren't any.
| A．is | B．were | C．was | D．have |
Our school is ________ a park and a big library.
| A．between | B．Next | C．across | D．in |