If we work with a strong will, we can overcome any difficulty, _______ great it is.

A cartoon series on Confucius was aired on TV, _____ the thinker was a 10-year-old boy, not an old man.

Give me a reason _____ you think that email is a good way for people to communicate.

—What can I do for you?
—I’d like to buy a present for my son, ______at a proper price but of great use.

_______is known to us is that time is limited and precious.

_________ you are a big boy, you must behave better.

All the Chinese workers do ________ they can  ______through the hard time.

The new comer is from Japan, ________ I can tell from his appearance.

The yellow house ______ windows face south is the one ____I bought last year.

The second book _______ you are reading is written by an American novelist.