某运输公司2011年拥有并使用以下车辆：（1）从事运输用的整备质量为8吨的挂车4辆；（2）整备质量为20吨的载货汽车10辆；（3）整备质量为10吨的半挂牵引车5辆。当地政府规定，载货汽车车船税年税额为每吨80元。该公司全年应缴纳车船税为（）元。

A.18720

B.20000

C.21280

D.22560

用所给词的适当形武填空。

1. My sister is considering __________ (change) her job because of the low salary.

2. How many _______ (fall) have you seen?

3. This is an ________ (educate) book.

4. _________ (lucky) , my sister helped me with my housework.

5. After the flood, many people became ________ (home).