It's eight _____________.[ ]
A. o'clock
B. clock
C. cock
答案:A
用所给词的适当形式填空。
1. Are they your _____ (brother)?
2. There are three people in _____ (Tom) family.
3. _____ (they) names are Linda and Jim.
4. Kate _____ (have) got a grandmother.
5. The old man and the old woman are my _____ (grandparent).
主要农作物种子标签在应当标注内容外,通过两个以上省级审定的,对品种中审定编号的要求有什么特殊规定?