【单选题】I don’t know when my father _____ back, but I’ll let you know when he ___back.
【单选题】I don’t know when they ____.
【简答题】观察下面数列的特点,填入适当的数字: 1,4,9,16,25,36,___,,81.
【单选题】---Which of the following sentences is CORRECT?
A.
I don’t know when will he come back tomorrow.
B.
I have no idea when will he come back tomorrow.
C.
I don’t know when he will come back tomorrow.
D.
I have no idea when is he coming back tomorrow.
【简答题】I don’t know when we will have the meeting. I don’t know when _______ _______ the meeting.
【简答题】观察下面数列的特点,用适当的数填空: ( ),4,3,2,1,( ),-1,( );