_________ rubbish did I throw onto the floor that there was no room for people to get past.
| A．So little | B．Too little | C．So much | D．Too much |
Distinguished guests and friends, welcome to our school. the ceremony of the 50th Anniversary this morning are our alumni（校友） from home and abroad.
| A．Attend | B．To attend | C．Attending | D．Having attended |
My parents in Hong Kong. They were born there and have never lived anywhere else.
| A．live | B．lived | C．were living | D．will live |
I like getting up very early in summer. The morning air is so good .
| A．to be breathed | B．to breathe | C．breathing | D．being breathed |
The CDs are on sale! Buy one and you get completely free.
| A．other | B．others | C．one | D．ones |
When he the door, he found his keys were nowhere.
| A．would open | B．opened | C．had opened | D．was to open |