This is a heartwarming story about a boy ______ saved his mother's life．（ ）
A．whichB．whoC．whoseD．whom
A group of elephants in Yunnan Province have trouble a proper living place.We should help them.（ ）
| A． |
find |
B． |
found |
C． |
to find |
D． |
finding |
﹣ When was the Communist Party of China founded？
﹣ In 1921.It 's her birthday this year.（ ）
| A． |
hundred |
B． |
hundredth |
| C． |
hundreds of |
D． |
the hundredth |
﹣Is this Linda's notebook？
﹣No，it 's mine.The thick one on the desk is .（ ）
| A． |
she |
B． |
her |
C． |
hers |
D． |
herself |
﹣ Hi，Jenny.What are you doing？
﹣ I 'm just washing the clothes for my sisters.（ ）
| A． |
Well ，nothing much. |
B． |
Glad to hear that. |
| C． |
Sure，no problem. |
D． |
Very kind of you. |
一Did you notice __________________ in his office？
一Yes，he was going over our homework.
A．how Mr.Li was doingB．what is Mr.Li doing
C．what Mr.Li was doing