Elsa lives on the _____ floor．（ ）
| A． |
nine |
B． |
ninth |
C． |
nineteen |
D． |
ninety |
Li Lei's mother him because he went out to play in the rain．（ ）
| A． |
was angry with |
| B． |
was pleased with |
| C． |
was proud of |
the girl is only six years old， she knows more than 300ancient Chinese poems．（ ）
| A． |
If |
B． |
Unless |
C． |
Although |
May I use your computer？
Sorry． I on it．（ ）
| A． |
work |
| B． |
am working |
| C． |
have worked |
Uncle Liang eats out because his wife always makes delicious food for him．（ ）
| A． |
seldom |
B． |
sometimes |
C． |
often |
We must protect animals． They are friends．（ ）
| A． |
us |
B． |
our |
C． |
ours |