—Hi, Lily and Kate, are you classmates? —Yes, ________.
_________ you able to cook meals ___________?
The number of the giant pandas in China is getting _________, but the red-crowned cranes are ___________.
Daniel found ___ easy to finish writing the report on wildlife.
If I ______ free tomorrow, we ________to Beijing Zoo.
They will build nature reserves _____ protecting ______ birds.