Question

3) Which negative sentence is in the Simple Present?
a) He do not reads a book.
b) He does not read a book.
c) He is not reading a book.
d) He not read a book.

Answer 1

b) he does not read a book.

Answer 2

b,porque quando há o verbo he/she/it é necessário o uso do does

e como é uma sentença negativa

teria que ser doesn't ou does not(letra b)