____ songs ____ difficult for Sandra. ____ ____ fun ____ the students to make short films. ____ basketball games ____ fun ____ ____ ____. ____ ____ ____ ____ Julia ____ do the math problems. ____ ____ ____ ____ ____ ____ ____. ____ ____ ____ ____ ____ ____ ____ ____.

康軒英語 B3L4 文法3_虛主詞 it、動名詞當主詞

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