Which sport do you like better， skiing or skating？
Both． I think ______ of them is interesting．（ ）
A．eitherB．noneC．neitherD．all
Where is Jim？
Look! He _______ under the tree．（ ）
A．is standingB．stood
C．stands
My daughter is years old． Today is her birthday．（ ）
A．nine； ninethB．nine； ninth
C．ninth； nine
Is this your English book？
No， it's my brother's． is over there．（ ）
A．MineB．MyC．Me
My grandfather does Chinese Kung Fu every day _________ he is over eighty． （ ）
A．sinceB．thoughC．until
May I be allowed to choose a summer course？
It's up to you． You're ____ to make your own decision． （ ）
A．too oldB．enough oldC．old enough