问题

Mr Green didn’t know ______ last night.
A:when does his son come back
B:when his son comes back
C:when his son come home
D:when his son came home
B:when his son comes back
C:when his son come home
D:when his son came home
正确答案是:
同类题型
What did your father do last weekend?— He ___________ at home with us all the time.
Is this your book, Alice? —Yes, it is ____ book. Thank you.
Listen ! Helen is singing in the next room.—It _______ be Helen. She has gone to Beijing.
The milk____ _strange .but it suits me_______.
Could you ___ us ___some information about all kinds of vacations?