What does "it" mean which is at the top of the sentence?
Native speaker’s answer
Rebecca
The first "it" in this sentence is used as an anticipatory verb subject or an empty subject before a verb. "It" is used to anticipate the subject which comes later in the sentence, and is used when the subject order is different from the true subject coming first in the sentence. Here's a few examples of "it" used in similar contexts: Ex: It was nice to visit them again. Ex: It is good that you did well on your test.