A.How many you have read books / do you understand what you have read
B.How many have books you read / whether you understand have what you read
C.Books you have read / you understand what you have read
D.How many books you have read / whether you understand what you have read

A.a noun clause is recognized
B.what a noun clause is recognized
C.how a noun clause is recognized
D.how is a noun clause recognized

A.how far the moon is
B.how far is the moon
C.if how far the moon is
D.how is the moon far

A.Whatever you do
B.Whatever do you do
C.What do you do
D.You do

A.is that is he unreliable
B.that is he unreliable
C.that he is unreliable
D.is that he is unreliable

A.Where did I stand
B.From did where I stand
C.Where I stood
D.From where I stood

A.Whoever do this
B.Whoever had done this
C.Had this done by whoever
D.This had done by whoever

A.how do you work
B.how you work
C.you work
D.do you work

A.What you eat
B.What do you eat
C.What are you eating
D.What eating

A.what you said
B.by what you said
C.did you say what
D.what to say