running hard to catch up withthe rest of his team when he fell over his own feet. When he struggledup, he felt his left ankle ______, and found his left hand ______ and his nose______.

The old professor, to_______ the important invention _______, decided not to keep it for himself, but to make it known to all over the world.

The man was______ surprised _______he couldn’t say a word.

Mr．Smith，a famous scientist，________that park next Thursday．

e _______the railway station, thetrain _______for 5 minutes．