(   ) 1. ---What makes you ______ he is from the UK?

         ---The way he speaks.

A. thinks   B. thinking   C. thought   D. think

(   ) 2. I should try my best ______ English well.

A. learning   B. learn   C. learnt   D. to learn

(   ) 3. I think diving is ______ activity of all.

A. most dangerous       B. more dangerous  

C. the most dangerous   D. the more dangerous