4．Bill went to the market and bought sometomatoes（西紅柿）．

分析 比爾去市場買了一些西紅柿．

解答 答案：tomatoes
此處用在形容詞some之后，指的是"一些西紅柿"；由于tomato是可數(shù)名詞，所以應(yīng)使用它的復(fù)數(shù)形式；故填tomatoes．

點評 本題考查了單詞拼寫；做類似的題時，除了掌握單詞的正確拼寫外，還應(yīng)根據(jù)句意，從語法分析的角度去判斷句中所填單詞的形式；本題中，考查了名詞tomato的復(fù)數(shù)形式；應(yīng)注意：有些以o結(jié)尾的名詞的復(fù)數(shù)形式是在其后加"es"，例如，hero，potato，tomato，echo等

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