Hello, Betty! Where are you now?— I ________ on the Great Wall of China and talking to you.
They were _______ busy _______ with each other to remember the time.
It was ____ exciting news that more than ten students in a single school were admitted to Tsinghua University in the same year.
In a traditional Chinese wedding, the newly married couple(夫妻)are usually _______in red.
Oh, this cartoon book is very interesting. Where did you buy ____? I want to buy _____, too.— In the bookshop near my home.