用所给的正确形式填空His bag is (heavy) than hers.We (see) elephants in

用所给的正确形式填空
His bag is (heavy) than hers.
We (see) elephants in the zoo last week.
The elephant is much (strong) than the dog.
Amy often (buy) a card for her teacher on Teachers'Day.
He (have) a fever.
Who can help (I)with my heavy box?
I (row) a boat yesterday.
(be) you a teacher?
Mike is (draw) a picture on the wall.
I (play) football with my friends tomorrow.