Some people are _________ power， wealth or fame， but all I want is only health and happiness．（ ）
| A． |
responsible for |
B． |
known for |
| C． |
thirsty for |
D． |
thankful to |
_______ Children's Day，all the children are very happy．（ ）
A．toB．InC．On
What were you doing when I phoned you yesterday evening？
I _______ my homework．（ ）
A．was doingB．have doneC．did
Fifty yuan ________ enough．（ ）
A．isB．amC．are
My teacher asked me ________ the room．（ ）
A．cleanB．cleansC．to clean
Is this your pencil？Yes，it's _________．（ ）
A．myB．meC．mine