—The land in the southwest of China is in great need of .—Yes, it hasn’t rained for a long time there.
—Can you give this book ____ Jack? —Yes, I can.
My name ____ Jack. Liu Ying and Sun Mei ____ my friends.
—____ are you? —I’m five .
One of my teachers ____ an Englishman.
She will call you if she ____.