--- Have you finished your work _______?
---Yes, I've _______ finished it.
| A．just； already | B．yet； never |
| C．yet； already | D．already； yet |
Thomas wants to know ______Nina lives.
| A．where | B．who | C．what | D．if |
He didn’t go there yesterday, _______he?
| A．did | B．does | C．didn’t | D．doesn’t |
He ______when the UFO arrived. He didn’t wake until the UFO disappeared.
| A．slept | B．was sleeping | C．was doing homework | D．was singing |
He said that light ______much faster than sound.
| A．has travelled | B．went | C．travels | D．travelled |
I won’t pass the exam ______I work hard..
| A．whenever | B．because | C．if | D．unless |