—Please don't step on the grassland. Can't you see the sign "______ the grassland" ?—Sorry, sir! I didn't see it.
---What does your mother do? ---She is ____________. She works in a hospital
---When do you usually take a shower? ---I take a shower __________ the morning.
2010 FIFA World Cup will be held in ____________
---_____________ is your pen pal from? ---He is from Australia.
---Can you dance or sing? --- _____________. So I want to join the music club.