— How old is his father?— He is thirty ________.
There is a big cake. ____________ share it.
Mr. Wang is ______ our good leader _____ our good friend.
Times seems __________ when we are playing computer games.
Shanghai is bigger than _____ in Jiangsu and bigger than _______ in China.
- ________ does the bridge made of steel weigh? -About 90,000 tons.