单词的正确形式填空。

1.It’s senen o’colock , let’s ______(have) supper.

2. We should ______ (exercise) all the time.

3. When the teacher came in , We all stopped ______ (talk).

4. Li Mei is the ______(good) student in our class.

5. She has ______ (work) here for ten years.

社会救助同样是一种按劳分配与按资分配的国民收入再分配渠道。