When did you ___________ the army?

 --- Ms Chen is our Chinese teacher. Let’s ________ “Hello” to her.--- OK. 

- Will you please write a short passage on "Meteor Garden" and_______ it to me this evening?- What about tomorrow?  My computer doesn't work okay now.

If(如果) you’re new in a big city, you can        a policeman for help.

I ______ the soup. It’s delicious.