第1个回答 2019-11-10
are
doing
am
studying
am
cleaning
is
swimming
第2个回答 2019-12-22
What
are
you
doing?
I
am
studying
Maths
I
am
claerning
my
room
She
is
awimming
第3个回答 2019-06-19
are
doing
am
studying
am
cleaning
was
swimming
第4个回答 2019-09-04
are
doing
am
studing
am
cleaning
is
swimming
第5个回答 2020-02-05
are
doing
am
studing
am
cleaning
is
going
to