1) The bag (be) blue.
2) The rocks (be) hard.
3) The children (be) young.
4) Thomas (be) nice.
5) The game (be) difficult.
6) They (be) tired.
7) I (be) thirty years old.
8) Susan and Juan (be) married.
9) Teddy (be) my friend.
10) We (be) in English class.