Prince William took a visit to the Forbidden City on Feb．28, ______ emperors once lived.
| A．which | B．whose | C．where | D．when |
They _______ some books from the liarary last week.
| A．lend | B．lends | C．buy | D．borrowed |
The tree must ________ three times a week.
| A．water | B．is watering | C．be watered | D．waters |
At weekends I prefer _______ at home to _______out.
| A．stay, going | B．staying, go | C．staying, going | D．to stay, go |
The sign " ________" is usually seen on the box with glass in.
| A．PULL | B．CLOSED | C．DANGER | D．FRAGILE |
Please let me know if you ________ your address.
| A．move | B．change | C．choose | D．find |