人员变动系指增减人员的（）等。
A、姓名
B、职务
C、原因
D、使用单位
参考答案：A, B, C
用所给词的适当形式填空。
1. Jenny is _____________ (sit) under the tree.
2. What a cold, _____________ (rain) day!
3. Can you teach me _____________ (skate), Li Fang?
4. Danny is tired. he walks _____________ (slow).
5. In fall, it's windy. I like watching falling _____________ (leaf).
