It is required that all traffic participants should___the traffic rules to make traffic safer and faster．
| A．perform | B．possess | C．observe | D．support |
---I decided to travel round Yunnan for a year.
---_______? You have just started a new job.
| A．Come on | B．How come | C．Why not | D．What for |
Some students came to Xiushui No.1 Middle School this year, and left their parents, _____ to return home until he achieves his goal.
| A．determining to not | B．not determined |
| C．not determining | D．determined not |
---John came to school as early as usual.
---So he did.He comes so early_____ to make the best of time to study.
| A．So | B． and | C．but | D．as |
Rather than_____on a crowded bus, he always prefers_____a bicycle.
| A．ride, ride | B．riding, to ride | C．ride, to ride | D．to ride, riding |
The money collected should be made good use _______ the people in flood-hit provinces of Zhejiang and Anhui.
| A．of helping | B．of to help | C．to helping | D．to help |