Most birds find it __
__ to sleep in the trees.
| A．was safe | B．safe | C．to be safe | D．being safe |
The other day, my brother drove his car down the street at ________ I thought was a dangerous speed.
| A．as | B．which | C．what | D．That |
A story goes ______ Elizabeth I of England liked nothing more than being surrounded by clever and qualified noblemen at court.
| A．when | B．where | C．what | D．that |
After Yang Li Wei succeeded in circling the earth, _______ our astronauts desire to do is walk in space.
| A．where | B．what | C．that | D．How |
A modern city has been set up in ________ was a wasteland ten years ago .
| A．what | B．which | C．That | D．where |
I think Father would like to know ___________ I've been up to so far, so I decide to send him a quick note
| A．which | B．why | C．what | D．How |