I lost my notebook. I must ______ it.
| A．find | B．found |
| C．finds | D．finding |
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．moved | 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 the last month, I _____________ all the CDs of Justin Bieber.
| A．collect | B．collected | C．have collected | D．had collected |
You _________lose your way if you walk alone in the mountains at night.
A. may B need C. should D. ought to