US First Lady Michelle Obama encouraged（鼓励）students to study abroad in her ____when visiting Peking University (北京大学) on March 22, 2014.
| A．story | B．speech |
| C．letter | D．diary |
---Have you found ________ in the grass, Millie? ---No, not yet.
| A．nothing unusual | B．unusual anything |
| C．anything unusual | D．unusual something |
---It’s time to sleep, Daniel.
---Oh, Mum, I won’t go to bed _____ I finish my homework.
| A．after | B．until | C．because | D．since |
I don’t understand ________.
| A．what does Christmas mean | B．what Christmas does mean |
| C．what mean Christmas does | D．what Christmas means |
________ can give our energy and is also the colour of envy.
| A．Red | B．Bule | C．Green | D．Black |
The boy with two dogs was sleeping when the fire___________.
| A．break down | B．broke out |
| C．break out | D．broke down。 |