While Helen ________ the piano,her mother came in.
Let’s go to the museum. Many ancient things are __________ in it.
They can hardly move at all, _____________?
We would rather buy some books______ some snacks.
---Sixteen-year-olds can drive their cars to school?---No. They shouldn’t ______ to drive their cars to school because are not serious enough.
I think that teenagers shouldn’t be allowed to get their ________.