A．terrible something B．something terribleC．terrible any……

单项选择题Gun control is a subject ______ Americans have argued for a long time.

单项选择题Bats are surprisingly long-lived creatures, some ______ a life span of around 20 years.

单项选择题As a salesman, he works on a (an) ______ basis, taking 10% of everything he sells.

单项选择题I'm not quite sure how to get there. I'd better______a map.

单项选择题—I'm going to study engineering in Tsinghua University tomorrow. —______.