—The dictionary is a useful _______ for understanding new words.—I think so.A. plan B. tool C. way
— Where _______your books? — _______ in the bookcase
— Does David have a ping-pong ball? —________. But he has some tennis balls.
Hi,Linda. This _____ my sister and those ______ my brothers.
_____ your brother_____ baseball?
— ______are my dictionaries ? —They’re in the schoolbag.