Usually, Mr.Pile _______ us Physics but today he ________ ill so Mrs.Young ______ us.
teaches/ is/ is teaching
has taught/ is/ teaches
is teaching/ has been/ teaches
taught/ was/ was teaching
Correct answer: A
Explain: Use the present simple for fixed events and the present continuous for temporary events.
Translated: Normally, Mr. Pile teaches physics to us, but today he was sick so Miss Young was teaching us.