问题

In no case ________ what you have done for us and at no time ______ your kindness. . [ ]
A: I shall forget; I will forget
B: shall I forget; shall I forget
C: shall I forget; I shall forget
D: forget I shall; forget I shall
B: shall I forget; shall I forget
C: shall I forget; I shall forget
D: forget I shall; forget I shall
正确答案是: