— I sent him a most interesting storyboo
题型：选择题
问题：
— I sent him a most interesting storybook by mail this morning.
— You ___ so, he is coming tomorrow morning. [ ]
A. needn't do
B. needn't have done
C. didn't need to do
D. didn't need do
— I sent him a most interesting storybook by mail this morning.
— You ___ so, he is coming tomorrow morning. [ ]
A. needn't do
B. needn't have done
C. didn't need to do
D. didn't need do