— Excuse me, what’s this in English?— It’s _____ eraser.A. a B. an C. the
31. Tom__________ his father, because they both are cheerful and easygoing.
— I wonder _ _.— I'm afraid we'll be late.
— How is your English study?Not bad. But I_______ learning English grammar.
My car alarm is always______ whenever my neighbor's cat goes under my car.
— I often chat with my friends on the Internet.— You are so smart! Will you please tell me____?