Most birds find it safe to sleep in the trees, but _____ they have eggs or young chicks, they don’t use a nest.
| A．why | B．how | C．unless | D．where |
________many times, but he still couldn’t remember my phone number.
| A．To be told | B．Told | C．Having been told | D．He had been told |
When he retells a story , sometimes he ___________ the key points.
| A．takes out | B．looks out | C．leaves out | D．gives out |
Tom is senior _______ most other students in our class .
| A．with | B．to | C． by | D．than |
It was _____ he came back from Africa that year _____ he met the girl he’d like to marry.
| A．when; then | B．not until; that | C．only; when | D．not; until |
Iraq has _____ too many wars, making people ______ a lot.
| A．got through; pay | B．looked through; face |
| C．gone through; suffer | D．passed through; destroy |