-Haven’t we met each other at ________ party?-Yes, but I can’t remember whether it is _________ Christmas when we were in college.
She found her calculator ________ she lost it.
The WTO cannot live up to its name _______ it does not include a country that is home to one fifth of mankind.
You will succeed in the end _______ you give halfway.
The famous scientist grew up ________ he was born and in 1930 he came to Shanghai.
.________, I have never seen anyone who’s as capable as John.