1¡¢— Why do not you like physics? 

—____ it is difficult and boring.

A.Becasue                   B. So                    C. But                   D. And

2¡¢Li Ping is good  ____ soccer.

A. to            B. at              C. in              D. with

3¡¢— ____ does the math class finish?

— At about 5 o^,clock.

A.How            B. How often                C. What time                D. Where