“How long does it take you _______to Beijing?” “More than three hours.”
— You went to town last month, What do you think of it? — Terrible . I _____ go there _____.
If there are ____trees, the air in our city will be ____cleaner.
Before the police , the alien left the shop .
We didn’t know the good news ______ he told us.
There _________ a computer in everyone's house in the future.