They are singing(in the classroom.)对打括号部分提问
They are singing(in the classroom.)对打括号部分提问
They are singing in the classroom.对"are singing"提问
They are singing in the classroom.对are singing 提问
The birds (are singing) in the tree括号部分提问
they are (yellow and blue)对打括号的部分提问
They are (playing football) on the playground(对打括号部分提问)
their dictionaries are (in the classroom)对括号部分提问
(The students)are singing in the classroom.就括号部分提出问题
There are (eight)people in the photo对打括号部分提问
I (watch TV) in the evening 对打括号部分提问
I like the girl (in green)对打括号部分提问
they()in the classroom now A sing B are singing