用括号内所给词的适当形式填空。
You don't need to(pay) for the meal. It's free.
_____! There's a car coming. It is moving too quickly.
Look after
Look at
Look out
Look for
My mother is ill _____ hospital. I have to look after her _____ hospital.
in; in a
in; in the
in the; in
at the; at