He (forget) his french since he (keave) paris. mr. black (already/come)? when he (come)? my parents (buy) a new car. they (buy) it two weeks ago. i (see) tom today. i (see) him at school.

He has forgotten his French since he left Paris.
Has Mr. Black already come?
When did  he come?
My parents have bought  a new car. They bought it two weeks ago.
I have seen tom today. I saw him at school