－What’s the time?
－Oh, I forgot to have my watch ________.
| A．wind | B．wound | C．winded | D．winding |
All the students who would like to visit the Province Museum, ______ down names here.
| A．writing | B．to write | C．write | D．wrote |
Itis ______ to have achieved so much in such a short time.
| A．something | B．anything | C．nothing | D．everything |
In fact, the renovation is just one move in a huge project to improve Chinese teachers’ housing ______ in recent years.
| A．situations | B．equipment | C．circumstances | D．conditions |
A curve is a line ______ no part is straight and which has no angle.
| A．that | B．whose | C．in which | D．of which |
Research shows that humans ______ from selfish to unselfish behavior when they are watched.
| A．tell | B．switch | C．range | D．distinguish |