问题
Do you know the girl _______is singing in the classroom?
A:who
B:which
C:when
D:that
B:which
C:when
D:that
正确答案是：
同类题型
Is that his pen __________ the lost and found case?[ ]
By the first day of August, 2007, the PLA has its ______ birthday.
David watches TV six hours a day and eats much junk food, but he never exercises. So he is ___.
The work is really very difficult; _________ it’s very interesting.[ ]
Don’t _______ your hope. Everything will be better.—Thank you. I’ll try my best.