— ______ did you visit the Great Wall?
— Last Sunday.
| A．Where | B．What | C．When | D．How |
Pet raisers should look after their pets carefully, _______ they won’t be allowed to keep them any longer.
| A．so | B．or | C．and | D．but |
Learning to do some team work with _______ is important in our daily life.
| A．the others | B．other |
| C．another | D．others |
What happened _______ the passengers on the Flight MH 730 on March 8?
| A．for | B．on |
| C．with | D．to |
I know _______ of the twins have been to Hainan Island before.
| A．neither | B．either |
| C．both | D．none |
We should always offer our help to _______ old when they need help in their life.
| A．an | B．the | C．/ | D．a |