Smiling doesn't ________ mean you're happy.Sometimes, it just means that you're strong enough to face problems.

---Excuse me, has the train from Beijing arrived yet?--- ________, you are three quarters earlier. It's only 9 now.

To regain their ______after a hard game, the players lay on the grass.

It makes great sense to check and ____________ the brakes（刹车）regularly.

When the old woman died, it___ that she was actually very rich.