问题

Why doesn’t she make notes —She has no pen to use.She seems one. A.tohave forgotten to bring B.toforget to bring C.tohave forgotten bringing D.toforget bringing
A:was
B:toforget to bring
C:tohave forgotten bringing
D:toforget bringing
B:toforget to bring
C:tohave forgotten bringing
D:toforget bringing
正确答案是: