五、单项选择。(每小题1分，共计15分)
(C)21.—I have ________ bad headache.
—I think you need to get ________ Xray.
A．the；a B．a；the C．a；an D．the；an
(B)22.Maybe I shouldn't say that—I might get ________ trouble.
A．for B．into C．by D．with
(D)23.It was so cold.Jane was afraid she would get ________ if she stayed here any longer.
A．tired B．comfortable C．lost D．sick
(C)24.Bill is in a difficult ________ and doesn't know what to do.
A．competition B．education C．situation D．discussion
