—Must we keep the window _______ all the time?
—No, you don’t have to.
| A．opening | B．opened |
| C．to open | D．Open |
_______ of the students in our class _______ money to the quake-hit areas these days.
| A．Two third; have raised | B．Two thirds; have raised |
| C．Two three; have donated | D．Two thirds; have donated |
I always sleep with windows open _______ it is too cold outside.
| A．until | B．if |
| C．that | D．unless |
How _______ the song she sings sounds! I have never_______ a better voice.
| A．beautifully; sounded | B．beautiful; heard |
| C．nicely; heard | D．nice; sounded |
--- How much homework has your cousin finished?
--- _______ at all. He has sat there the whole morning, doing _______.
| A．None; nothing | B．Nothing; none |
| C．No one; nothing | D．None; none |
Captain America(美国队长) is such _______ wonderful science fiction movie that I want to see it _______ second time.
| A．a; the | B．a; a |
| C．/; the | D．/; a |