she is not so cheerful she used to be?
| A．How is it that；as | B．Why is it that；what |
| C．Is it why；that | D．How it is that；as |
——The price is fine with me. How would you like it to be paid?
——Justcash, please.
| A．by | B．in | C．with | D．through |
——Jane, which color do you prefer, red or blue?
——. I prefer to buy a green one.
| A．Either will be OK | B．Both will be OK |
| C．To be honest, neither | D．Generally, I’m not sure |
You are silly notyour door.
| A．to lock | B．to have locked | C．locking | D．having locked |
he will return to his native land.
| A．It is long before that | B．It is before long that |
| C．It won’t be long before | D．It will be long before that |
Great attention must be paidwelfare, especially in the poor area.
| A．develop | B．to develop | C．to developing | D．developing |