某单位为鼓励职工节约用水，作出了以下规定：每位职工每月用水不超过10立方米的，按每立方米m元水费收费；用水超过10立方米的，超过部分加倍收费。某职工某月缴水费16m元，则该职工这个月实际用水为（    ）立方米。

动词填空

1. He ________(wash) the dishes in the kitchen when I saw him yesterday evening.

2. Some old people are happy _________(be)with the young ones.

3. Tom says he _________(not watch)the video film tonight.

4. How _______Bob ______(go)to school every day except weekends?

5. —"Mum, I saw a new kind of bike. It_____(cost) only two hundred and fifty yuan,"     

    —"Oh, really?"

6. Can she _______(run) as fast as Helen ?

7. We________(visit) the Great Wall next week.

8. Don’t _______(talk) now.

9. Let’s try our best _________(finish) the work in an hour.

10. She often_______ (visit) her aunt’s house last year.