__(be)you free now?Sorry,I(be)very busy.Today(be)a busy day.用()里所给的词的正确形式填空

问题描述:

__(be)you free now?Sorry,I(be)very busy.Today(be)a busy day.
用()里所给的词的正确形式填空

Are you free now?
Sorry, I am very busy.
Today is a busy day.

are
am
is

Are am is