--- Mr Wu, could you tell me ________?--- You’d better do more speaking.
---This bag is too heavy for me. Could you please do me _____ favor? -----Sure . A. the B. an C. a
—____—They’re English books.
—Do you know the girl ____ red?—Oh, she is my sister.
____ are good friends. We’re in the same class.
—What does she look like?—____