To my great disappointment, my best friend left the city I could have a word with her.
| A．before | B．after | C．while | D．until |
For ages, Bill Gates has been supporting educational programmes that ______from kindergartens to universities.
| A．range | B．move | C．vary | D．spread |
After staying in room for weeks, the lady was advised to go to the outside world to ______ her confidence as well as health.
| A．take up | B．make up | C．carry up | D．pick up |
It ______ to me that I might try this way to deal with this problem.
| A．took place | B．burst | C．occurred | D．happened |
—The tree is so tall.
—Yes. It ______nearly 20 metres.
| A．measures | B．is measured | C．measure | D．to be measured |
Most of the Europeans refuse to accept GM food ______Americans regard it as the fruit from high tech.
| A．when | B．as | C．while | D．the moment |