There are so many beautiful flowers and green trees on __________ side of the street.
| A．both | B．either |
| C．several | D．other |
— Are you at the airport? How’s everything?
— The flight __________ to Nanjing an hour ago. I have to wait for the next flight.
| A．took off | B．got off |
| C．broke off | D．fell off |
— Do you miss your family when you’re abroad?
— Yes,o f course. You will miss your family __________ you go.
| A．whoever | B．whatever |
| C．whenever | D．wherever |
Alan has many different stamps. She __________ it for ten years.
| A．collected | B．is collecting |
| C．will collect | D．has collected |
We won’t put off our plan __________ it snows heavily tomorrow.
| A．whether | B．unless |
| C．because | D．While |