I really don't know whether_____(close) the windows.动词填空答案是to close 还是will close?为什么?

来源：学生学帮网 编辑：学帮网 时间：2024/07/07 23:58:23

I really don't know whether_____(close) the windows.
动词填空答案是to close 还是will close?为什么?

语法上来说是to close ,不然2个动词了