【单选题】3) On review of his file, Mrs. Thompson realized that Teddy’s change over the past several years resulted from the fact that ______ . A) he was slow and hopelessly behind the others B) his mother had ...
A.
he was slow and hopelessly behind the others
B.
his mother had been terminally ill and soon passed away
C.
he had no interest in school and sometimes slept in class
D.
he was not liked by his classmates and had very few friends