Mr. Green works in office, but his sister works a farm.A.a, in B.an, in C.an, on
His name is Alan Williams. His _______ name is Williams.
Please call me _____ 289-6578.
---Is this _________backpack? -----No, it isn’t. It’s _________ backpack.
____, what’s this in English?
These _______ her parents. That _______ her sister.