---_____do you visit your uncle?---once a week .
They got up early_____ they could catch the early bus.
--Let’s go to the park if it ______tomorrow. --But nobody knows if it ______tomorrow.
David, get up early, _______ you'll not catch the early bus.
She has studied in this school she was seven years old.
The Great Wall is famous lots of visitors all over the world come to visit it every year.