New York is one of ____ in the world.
Everyone knows Shanghai is larger than _________ in Jiangsu.
He has some problems _________ his English learning.
---What’re you _____?---My husband’s health problem _____ me a lot.
I usually do my homework _____than Mary. But she makes fewer mistakes because she is_____.
— People can print (打印) a 3-D camera now. — How amazing! It looks like a ______one.