When I grow up ,I’m going to do _____I want to do.

concert__ to _ some money for thosesuffering from the earthquake, which __ 2,000 lives.

（题文）The tiger, once a ____ animal to humans, is now ____ of disappearing on the earth.

I can’t believe it! I only got a B on my project— That’s not a bad grade— But I_____ on it for weeks[ ]

When asked to explain ________ made his lessons so exciting, the teacher kept silent.