Mum, I’m too tired to walk any farther.— You mean it’s _________ to take a taxi?

_____ I can’t pass the test? —Never mind. You can take the test later.[ ]

Teenagers _______ allowed to drive in the street．

Mum, my little sister is crying all the time. —Mary, be! She feels sick. You should take good care of her.

The twins are sleeping. Don’t ________.