— What is that? —It’s _______ eraser, and it’s _______ red eraser. A. a; a B. an; a C. an; an
It’s very kind _____you to help me with my maths. It is hard _____me to learn it well.
She loves ______money and _______food ______others.
He is very ______and he always explains things _____us.
The girl can’t hear anything. We can say she is ________or there is _______with his ears.
Although you have lots of difficulties, you must _______your work.