Our rooms __________ by my mother three times a week.
| A．cleans | B．are cleaning |
| C．is cleaned | D．are cleaned |
Liza speaks English very well，_______she doesn’t know Chinese.
| A．and | B．so | C．but | D．Because |
There are _______ students in our class, twenty-two boys and eighteen girls.
| A．fourth | B．forty | C．fourteen | D．Four |
—What’s this in English??
—It’s _______ orange.
| A．a | B．an | C．the | D．/ |
—Can she play the guitar?
—No, she_______. It’s too hard for her.
| A．Must | B．should | C．can | D．can’t |
I can’t tell when the house was built _______, but it must be very old.
| A．exactly | B．differently |
| C．quickly | D．Simply |