---It’s said that scientists are working hard to ________ a way to deal with H7N9 avian influenza(H7N9禽流感)---Really? That’s great!
He cut off half his right arm______ a knife ______the dangerous situation.
---What are you going to do this weekend?-----I’m going to help _____the city parks with my classmates to make them clean.
I have a______, so the doctor told me to drink lots of water.
---Mum, I cut myself just now. ----You ______put some medicine on it.
_______everyone is here. Let’s start our meeting.