I got close enough to hear them speaking Chinese, and I said “Ni Hao,”just as I________do in China.[ ]

Tony’s sister is ______ to take care of thelittle baby.

What’s this?—It’s a machine which was invented in __________century in China.

I won’t give you any help_____ you tell me the truthIt’s none of my business[ ]

You will not succeed ______ you work harder.