During the camp trip，children were fascinated by wonders
of nature．
| A．／；／ | B．／；the | C．the；／ | D．the；the |
Lessons can be learned to face the future, ______ history cannot be changed.
| A．since | B．as | C．though | D．unless |
When he came in, he found his nephew ______ on the sofa watching a cartoon program.
| A．seated | B．seating |
| C．to seat | D．having seated |
Tom was wild with joy when his mother told him that his stolen bike had been ______.
| A．reflected | B．recovered |
| C．responded | D．recorded |
We would rather our daughter ______ at home with us, but it is her choice, and she is not a child any longer.
| A．would stay | B．has stayed |
| C．stayed | D．stay |
He’s ______ as a “bellyacher”—he’s always complaining about something.
| A．who is known | B．whom is known |
| C．what is known | D．which is known |