—_____we keep the window _____ all the time?
—No, you don’t have to .
| A．Can; opening | B．May; opened |
| C．Must; opening | D．Could; to open |
She is my aunt’s daughter. So she is my .
| A．sister | B．cousin | C．brother | D．friends |
－Is this ruler?
－No, it isn’t. It’s .
| A．your, mine | B．her, his | C．his, her | D．your, her |
Mike and I good friends.
| A．is | B．am | C．are | D．be |
－Your watch is very nice.
－.
| A．Thank you. | B．Yes, it is. | C．Don’t then me. | D．You’re welcome. |
－What’s this?
－It’s .
| A．a orange | B．an UFO | C．ruler | D．an ID card |