BrainPOP is an educational program consisting of briefanimated videos _____ a man named Tim and his robot friend Moby discuss varioussubjects

Were all the passengers on the bus injured in the accident?—No，______ only the four who got hurt.

Cancer has become the top killer ________ I think threatens the health of millions of people.

No drivingafter drinking is a rule that every driver _______ obey in our country

is one of largestcountries in the world,secondonly to Russia