1. —Your ring looks nice. Is it made ____ silver?

—Yes, it is. It's a gift from my grandmother.

A. in                                   B. of 

C. from                                 D. into

2. Because of Yuan Longping's achievements, rice ____ has been increased greatly.

A. population                           B. contribution

C. production                           D. introduction

3. With the development of China, Chinese is used more ____ around the world.

A. widely                               B. badly 

C. luckily                              D. normally