—Mr. Ding, I have some problems_______ the passage.
—Remember_______ it three or four times at least.
| A．to understand; reading | B．understanding; reading |
| C．to understand; to read | D．understanding; to read |
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
We didn’t start our discussion __________ everybody arrived.
| A．since | B．if | C．while | D．until |