Each sentence has a mistake. Find the mistake and correct i

Each sentence has a mistake. Find the mistake and correct it.

0. Her hobby are listening to music.                                          ( are-> is)

1. There are any oranges on the table in the kitchen.                      .....................................

2. Flowers are buy by my mother on special occasions.                 .....................................

3. My husband  doesn’t like mangoes, and my brother doesn’t, too.  ...................................

4. How much sandwiches do you want to buy? - Just two.             .....................................