We couldn't see the road clearly _____ the heavy snow.
| A．because | B．but |
| C．though | D．because of |
－Have you finished your homework?
－Yes, I have. I it this morning.
| A．finish | B．finishes | C．finished | D．have finished |
－Hi, Tom, which is the street in your city ?
－High Street. Many people go shopping there.
| A．busy | B．busiest | C．quieter | D．Quieter |
－When should I hand in my paper?－It after class.
| A．must be handed in | B．is handed in | C．was handed in | D．will hand in |
— ______ is it from your home to your school?—Two kilometers.
| A．How much | B．How often | C．How far | D．How long |
—Why do you look tired?—Because I until 11:50 last night.
| A．stayed up | B．stayed away | C．stayed at | D．stay in |