The little boy seemed ________ after his grandpa gave him a bottle of milk.
—useful invention it is. —Yes, It helps us a lot.
—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.