Today， all the erhu masters play and praise Erquan Yingyue． It ____ one of China's national treasures．（ ）
| A． |
becomes |
B． |
became |
C． |
has become |
-Hello! I'd like to speak to the Customer Service Department.
-Please ________ and I'll put you through.
| A． |
hold on |
B． |
carry on |
C． |
come on |
D． |
go on |
Last September, Thunderstormwas shown ________ Cao Yu, one of China's greatest playwrights.
| A． |
remember |
B． |
remembering |
C． |
remembered |
D． |
to remember |
Cloth shoes became popular during the Ming Dynasty, ________ in Sichuan province.
| A． |
hardly |
B． |
nearly |
C． |
really |
D． |
especially |
Rainbows ________ when sunlight passes through small drops of water in the sky.
| A． |
produce |
B． |
produced |
C． |
are produced |
D． |
were produced |
Alice often ________ the fun of doing DIY with us. She is so creative!
| A． |
shares |
B． |
provides |
C． |
makes |
D． |
gives |