可撤销的合同在被撤销前，属于( )合同。
A．无效
B．既未成立也未生效
C．有效
D．虽未成立但已生效
参考答案：C
The farmers grow some ______ here. [ ]
A. rices
B. carrot
C. tomatoes
D. milk
用所给词的适当形式填空。
1. __________ you __________ (have) a basketball?
2. Do you __________ (play) volleyball?
3. That __________ (sound) good.
4. I don't __________ (have) a tennis bat.
5.—Does she have a soccer ball?
—Yes, she __________ (do).
