问题

can Iask you a favor—-Sure, _______
A:since
B:before
C:that
D:when
B:before
C:that
D:when
正确答案是:
同类题型
Let those in needthat we will go all out to help them.
Thefinalexaminationiscomingupsoon.It’stimeforusto_______ourstudies.
Because her daughter is seriously ill, she is ________ in attending on her all day.[ ]
Your bag is very nice. —______.
You’d better _____ your score and see if you have passed the exam.