----______________your classroom clean?
---Yes. We ____________ it after school every day.
| A．Does; cleans | B．Are; clean |
| C．Do; cleans | D．Is clean |
I __ interested in the history of China.
| A．am | B．is | C．are | D．Be |
—What time did you get there this morning?
— _______ eight.
| A．In | B．On | C．At | D．From |
The policeman asked us _____him send the old man to the hospital.
| A．help | B．helps |
| C．helping | D．to help |
Mr Black ________ the flowers yesterday.
| A．water | B．waters |
| C．watered | D．to water |
Wangfujing Street is one of __ streets in Beijing .Let’s go there for a shopping trip.
| A．busy | B．busier |
| C．busiest | D．the busiest |