Mrs. Lin is not only strict__________ her students but also __________ her teaching.[ ]

Where have you _______ all day?— I came back at noon and I _______ in this office since then.

It’s wrong to ____some small advertisements at night.

Do you _________ a dog _______ a pet athome![]

What are you doing right now?—The same ________ you. Doing homework.[ ]