—I think students can get their ears pierced. —I’m _______ against you. They’re so young.
He____know the answer, but I’m not sure.
My sister____Beijing tomorrow. She works there.
-My mother is ill in hospital. ——_______.
We can use QQ to talk with each other online. --Good! Will you please show me ______it?
My mother often spends 2 hours ______ housework every day.