单项选择题

A．At a publishing house.
B．At a bookstore.
C．At a library.
D．At a grocery.
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单项选择题
A．He has almost finished carrying the boxes.B．He is grateful to find a helper.C．It might be too heavy for her to lift.D．A lot of boxes of books are waiting to be carried.
A．He has almost finished carrying the boxes.
B．He is grateful to find a helper.
C．It might be too heavy for her to lift.
D．A lot of boxes of books are waiting to be carried.
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