Turn on the TV, and there is _________.
| A．important something | B．important nothing | C．something important | D．nothing important |
---Are these your books?
--- Yes, ________.
| A．I am | B．these are | C．they are | D．you are |
Thank you ________ your e-mail.
| A．of | B．at | C．for | D．in |
The boy is ________ the room.
| A．on | B．in | C．at | D．under |
---Where are your brothers?
---________ in the classroom.
| A．He’s | B．She’s | C．They | D．They’re |
--- ________ your sister a student?
---No, she ________.
| A．Is; is | B．Is; isn’t | C．Are; is | D．Are; isn’t |