在英语中,表示"它正在穿鞋"可以使用以下几种表达方式:

"It is putting on its shoes."(它正在穿鞋。)
"It is getting ready to put on its shoes."(它正准备穿鞋。)
"It is lacing up its shoes."(它正在系鞋带。)

这些表达方式均可用于描述一个人或动物正在穿鞋的情况。

下面是一些使用这些表达方式的例句:

Example 1: "I saw it putting on its shoes when I walked by the window."(我从窗户走过时看到它正在穿鞋。)
Example 2: "It's getting ready to put on its shoes before we go for a walk."(我们出门散步前,它正准备穿鞋。)
Example 3: "It's taking a long time to lace up its shoes because the laces are too long."(它系鞋带花了很长时间,因为鞋带太长了。)

希望这些信息对你有帮助。