“________ give up (放弃), then you can be successful.”

-- Dad, it’s such a long way from our home to the park! -- You mean it’s ______ to take a taxi?

He is too old to run_____ to catch up with the young boy.

It’s________ in Australia when it’s winter in China.

You are under 18 years old, so it is        for you to join the Trailwalker.