Question

—What’s          matter?
—I have          toothache.

A．/; a

B．the; a

C．the; an

D．a; a

Answer 1

B

试题分析：句意：你怎么了？我牙疼。What’s the matter?="What’s" wrong?你怎么了？牙疼have a toothache，故选B。