痣细胞仅位于表皮底层，有潜在恶变可能的痣是 A．交界痣 B．皮内痣 C．混合痣 D．

Worries about school bus safety have drawn much attention. Now schools in some poor areas are looking   41  some other ways to go to school.
In the countryside, students are living in different places. And there isn’t enough   time for school buses to go around and pick up   42  student. So the most useful way is to let students living in the   43  village take a special school bus which is for them only. And the cost is   44  by their parents and the school.
Each bus is asked to carry only five students on the same route(路线) every day. Traffic police are also making daily checks to make sure drivers don’t carry__45  than 5 students. For a bus like this, the drivers can   46  make any money. So schools pay 300 yuan to drivers every month. The rest comes from the parents’ pockets（口袋）.
The roads to the students’ homes are rough(崎岖的) and sometimes even dangerous,   47  falling rocks and narrow（狭窄的） bridges. After spending at least an hour on the road, the students finally make it home.   48 the money for taking a bus has increased and it’s not easy for parents to make money, they are glad to know that their children will   49  home safely each day. And they feel happy to see their child enjoy their time at school. But one girl says she’s seen the big yellow school   50  on TV, and wonders when she’ll ride one of her own.

小题1:	A．at B．up C．for D．through

小题2:	A．all B．every C．both D．either

小题3:	A．near B．far C．same D．poor

小题4:	A．bought B．spent C．paid D．took

小题5:	A．few B．fewer C．many D．more

小题6:	A．always B．often C．sometimes D．hardly

小题7:	A．and B．but C．with D．without

小题8:	A．Because B．Although C．If D．When

小题9:	A．get B．arrive at C．arrive in D．reach to

小题10:

A．desks B．bags C．buses D．bikes