你想知知道别人有多重，你应该怎么说？ ( )
A．How high are you? B.How old are you? C.How heavy are you?
It's too cold here. Please put _____ your coat.
| A．on | B．off | C．away | D．up |
_____ are you reading in the classroom?
| A．Who | B．When | C．How | D．What |
Shall we go to the park _____ to the zoo?
| A．and | B．or | C．but | D．so |
We cannot live _____ air.
| A．with | B．without | C．of | D．for |
_____ computer is it? May I _____ it?
| A．Who; use | B．Whose; use | C．Whose; uses | D．Who; uses |