(A) be placed in regular classroom settings whenever possible also assured all children who have a reading problem
(B) should be placed in regular classroom settings whenever possible also assures all children that have a reading problem
(C) are placed in regular classroom settings whenever possible also assures those children who are having reading problems
(D) be placed in regular classroom settings whenever possible also assured children with reading problems
(E) should be placed in regular classroom settings whenever possible also has assured all those children with a reading problem
Solution:
In a subjunctive sentence the verb is always of a form "be" hence, B, C, and E are incorrect.
Cant figure out how is D better than A.
Sentence Correction - 1000 Questions with Solution: