They have ______ their homework already.
| A．finish | B．finishes |
| C．finished | D．finishing |
---Alice, the dress __________ silk looks good ___________ you.
---Thank you.
| A．is made of; on | B．made of; in |
| C．made of; on | D．is made of; in |
—The teachers in that school speak either English or French, or even_______ ?
—That’s so cool.
| A．both | B．all | C．neither | D．none |
— Must I turn off the gas after cooking?
— Of course. You can never be________ careful with that.
| A．enough | B．too | C．so | D．very |
---Can you describe what Mr. Green's daughter is like?
--- Oh, she has the very_______ of Mr. Green. I'm sure you can know her at the first sight.
| A．photo | B．voice | C．look | D．taste |
We can have ________ bluer sky if we create _________less polluted world.
| A．a; a | B．a; the |
| C．the; a | D．the; the |