Is the bridge strong enough to /səˈpɔ：t/two heavy trucks at the same time？
People are advised （keep） a distance of 6 feet or more in public places.
The world （not face） such a big challenge since World War II.
Come on!Go ahead，or you （regret） it for the rest of your life.
There are many places on the earth that are still （known） to humans.
The little girl dreamt of becoming a good ballet （dance）.