—I happened to meet Lily yesterday.
—Lucky dog！You ________each other for two years.
| A．haven’t seen | B．hadn’t seen |
| C．didn’t see | D．don’t see |
________matters most in learning English is enough practice.
| A．What | B．Why |
| C．Where | D．Which |
________you’ve got a chance，you might as well make full use of it.
| A．Now that | B．After |
| C．Although | D．As soon as |
—Did you return Fred’s call?
—I didn’t need to________I’ll see him tomorrow.
| A．though | B．unless |
| C．when | D．because |
Some parts in South China have experienced________this year as they did last year.
| A．twice as much rain | B．rain twice as much |
| C．as twice much rain | D．twice rain as much |
Ten years ago the population of our village was________that of theirs.
| A．as twice large as | B．twice as large as |
| C．twice as much as | D．as twice much as |