There are twelve boys and thirteen girls in Class Four，which means ______students in total．（ ）
A．33B．25C．13D．12
﹣Jeff，I will take an important exam tomorrow．
_______．（ ）
| A． |
Good luck! |
| B． |
Congratulations! |
| C． |
Good idea |
The teenagers often help ______ water and food to those people in need．（ ）
| A． |
put out |
B． |
give out |
C． |
find out |
Andy，I wonder ______ the new sports clothes．
Of course by credit card．（ ）
| A． |
what you paid for |
| B． |
how you paid for |
| C． |
why you paid for |
______ birds have come back because the environment here becomes better and better．（ ）
| A． |
Thousands of |
| B． |
Thousand of |
| C． |
Thousands |
It is ______ known that more and more foreigners are learning Chinese culture now．（ ）
| A． |
politely |
B． |
loudly |
C． |
widely |