now可用于讲述故事或过去的事情,意思是“这时”,“此刻”,"这下“,”这一来“,你的句子就是这个用法。
再举一例
I helped him finish the homework. Now he could hand it in to the teacher.
我帮他做了作业,这下可以交给老师了。
now甚至可以表示将来,比如
I just broke his phone. Now he'll probably get angry with me.
我刚弄坏了他的手机,这下他可能要生我的气了。
希望我的回答帮到了你。
要根据语境和上下文