---How’s that? Who broke the glass?
---Well, it ______ me. I was doing my homework the whole evening.
| A．hasn’t been | B．wasn’t |
| C．weren’t | D．hadn’t been |
The keythe earth is to change the waywe live.
| A．to save; / | B．to saving; / |
| C．to save; how | D．to saving; how |
There are over 100 night clubs in the city, but you don’t often seethat is empty.
| A．one | B．the one | C．it | D．that |
It is _____ we do ---- you and I ____ changes the world.
| A．that; that | B．that; what | C．what; that | D．what; what |
The news has spread all over the country _____ Premier Wen Jiabao will attend the Copenhagen summit next week.
| A．that | B．which | C．whether | D．what |
Entering the reading room, ______.
| A．Mike and Tom were found seated quietly, doing their homework |
| B．Mike and Tom were found seating quietly, doing their homework |
| C．he found Mike and Tom seating quietly, doing their homework |
| D．he found Mike and Tom seated quietly, doing their homework |