_____ of the students in our class _____ girls.
| A．Three fives; is | B．Three fifths; is |
| C．Three fifth; are | D．Three fifths; are |
As we all know, it’s not polite to keep others _____ for a long time.
| A．wait | B．waited | C．to wait | D．waiting |
An official _____ by some reporters on food problems in Shanghai yesterday.
| A．is interviewing | B．is interviewed | C．was interviewing | D．was interviewed |
We are glad to hear that the Greens _____ to a new flat next week.
| A．move | B．moved | C．will move | D．have moved |
Now my father _____ his bike to work every day instead of driving.
| A．ride | B．rode | C．rides | D．will ride |
By the end of last month, I _____ all the CDs of Justin Bieber.
| A．collect | B．collected | C．have collected | D．had collected |