用括号里所给词的正确形式填空.1.Look at the woman.She _________(swim)over s
用括号里所给词的正确形式填空.
1.Look at the woman.She _________(swim)over shere.
2.Listen to the birds.They _________(sing)in the trees.
3.Can you __________(sing) the song?
疑问点:1、2题难倒是不难,但是前面是否要加is和are?3题我觉得就是sing,好像不是singing.