There is/are ten plants in pots in our classroom.There is/are some

There is/are ten plants in pots in our classroom.

There is/are some apple jam on the bread.

There is/are a lot of questions after the text for you.

There is/are a long blackboard on the wall.

There is/are fifty-seven cupboards in the school.

There is/are a sofa in the teacher's room.

There is/are twenty-three tables in the lunch room.