The brush may be _______ useful tool for you to make things.

A. / B. a C. an D. the

B 【解析】句意：這個畫筆可能是你制作東西的有用工具。useful以輔音音素開頭，前面用不定冠詞a修飾，表示泛指，故答案為B。
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1.D 2.B 3.C 4.A 5.C 【解析】本文介紹了積極的人的表現(xiàn)。積極的人總是充滿希望，并想到好的情況而不是壞的情況。在文中介紹了盲目樂觀和積極看待事物的區(qū)別。積極思考的結果是積極的態(tài)度會導致更少的壓力和悲傷；積極和消極的區(qū)別；策略性等幾個方面來論述。 1.推理判斷題。A. a notice通知；B. a survey調查；C. a diary日記；D....

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閱讀下面短文，根據(jù)短文內容完成下列各題。

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A. taking the bus

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