—The land in the southwest of China is in great need of .—Yes, it hasn’t rained for a long time there.A、people B、food C、water
.I don’t remember _______ the book yesterday.
_______ useful information it is!
She is a _______ girl and she always says to her teachers _______.
.The math problem is _______ hard for me ______ work out.
----How do you learn English, Toby ? ---I often practice English _____ talking _____ my American friends.