I am sorry I can't hear______.A how he is doingB what he is sayingC what is he sayingD how is he doing

I am sorry I can't hear______.A how he is doingB what he is sayingC what is he sayingD how is he doing
I am sorry I can't hear______.
A how he is doing
B what he is saying
C what is he saying
D how is he doing

I am sorry I can't hear______.A how he is doingB what he is sayingC what is he sayingD how is he doing
B
肯定句：主句+（that）+句子的肯定形式
一般疑问句：主句+if+句子的肯定形式
特殊疑问句：主句+特殊疑问词+句子的肯定形式

B

c 宾语从句正常语序即可.what 引导

B
从句语序为 疑问副词+主语+谓语+其他