—Do you know_______?—Sorry, I don’t know.A. how old is he B. how old he is C. how old does he
This kind of cloth feels _____ and sells_____.
The young trees should ______well as often as possible.
Tony used to _______ to school, but he is used to _______ to school now.
My grandpa is _________ weak ______ look after himself.He needs help.
When they heard the ___________ news,they got very ___________.