She teaches _______ and does not have much time for her own _______ A. a couple of classes / researchs B. a lot of classes / research C. many classes / researches D. a great deal of classes
She teaches _______ and does not have much time for her own _______
A. a couple of classes / researchs
B. a lot of classes / research
C. many classes / researches
D. a great deal of classes / research