用動(dòng)詞的適當(dāng)形式填空。
Look at the duck.It is swimmingis swimming (swim) on the lake.
【考點(diǎn)】現(xiàn)在進(jìn)行時(shí).
【答案】is swimming
【解答】
【點(diǎn)評(píng)】
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發(fā)布:2025/3/25 0:30:1組卷:13引用:1難度:0.6