There is a police car _____ the bus. The police are watching the traffic.
| A．in front of | B．in the front of |
| C．in the front | D．the front |
--_____________does your brother go to work?
-- By bike.
A. Where B. Why C. How
--Whatare those sweaters?
--They are yellow.
A. color B.size C.shape
--- When did your father come back last night?
--- He didn’t come back _______ he finished all the work.
| A．until | B．while | C．if | D．unless |
I think Kate will come if she _______ free this afternoon.
| A．is | B．will be | C．was | D．are |
---I hope you _______ my party next weekend?
--- OK, I _______ .
| A．to come in; will | B．come to; will |
| C．came: am | D．will come to; will |