They didn't go to bed_____ the work was finished.
| A．when | B．while | C．until | D．after |
---When will you hand in your homework?
---Sorry, I’m not sure. I _______ writing it yet.
| A．didn’t finish | B．don’t finish |
| C．hadn’t finished | D．haven’t finished |
She ______ to an English program while her parents ______ TV
| A．was listening; is watching |
| B．listened; were watching |
| C．was listening; watched |
| D．was listening; were watching |
It _________about an hour to take the underground from the town to the city.
| A．costs | B．spends | C．pays | D．takes |
She must be a true friend. She never _______ a bad word about others.
| A．speaks | B．says | C．talks | D．tells |
He found _________ to sleep.
| A．difficult to get | B．it difficult getting |
| C．it difficult to get | D．that difficult to get |