______are you so happy, Daniel -Because it’s my birthday today.

We must keep our room clean. Dirt and disease go _____, you know.

Roads in this mountain area used to be ______; people found it hard to travel here.

Tom ________ friendship and experience from the local residents, working with them for 3 years.[ ]

Would you like to go to the –Yes, I’d like to. I like pandas very much.