The young man comes from a(n) ________ family,who owns several companies in London and Paris.
It was _____I met him in Beijing.
The question occurred to me _____ we should go to get the car repaired. We were in the forest at that time.
—Dad, can we go to the shop? I want to buy some sweets. —__________. Can’t you see I’m busy at the moment?
Next to biology, I like physics _______.
By the time you finish the book, you ______ more about Chinese history.