The waitress talked as ________ as she could to make the customers understand her.
---How was _________ dinner at Li Lei’s house?---It was great. Li Lei’s mum is ________ wonderful cook.
The people there are surfing the Internet, ______?
________ of the students in our class is 64, and ________ of them are girls.
I ______ along the road when suddenly someone patted me on the shoulder from behind.
We are told ________ everywhere. It’s our duty to keep our school clean.