They were ______(砍）a tall tree down when I saw them.这个题,谁若知道就告诉我,
问题描述：
They were ______(砍）a tall tree down when I saw them.这个题,谁若知道就告诉我,
答
cuting
答
cutting
答
cutting
如果还有问题,可以问我,
答
chopping