Everything _____ doing is worthy of _____ well.
—Jane always tries to ____.—That’s true. She always compares herself with her friends and neighbours.
It is the test system, rather than the teachers,_______ is to blame for the students' heavy burden nowadays.
—_____ do you like the match?—More exciting than _____.
Betty’s parents are away for the week, so I think I’d go over to keep her _____.
True friendship is like sound health, _____ value is seldom known until it is lost.