Tigers are ____ scary, so I’m afraid of them .
—Tom has made great progress this term.— , and .
The bike boy fixed up all the bikes then he ______ to the poor children .
_______ has donated much money to the charity .
---.Look! It _____be your uncle .----It_____ be him . He has gone to Xi’an.
---Did you use to ____ a bus to school?---Yes .But now I am used to ____ a bike to school .