【15】A．mathB．mathsC．mouthsD．mouth

What can be done to prevent swine flu？A．Stop touching mouth, nose or eyes.B．Avoid

She heard a terrible noise, _____ brought her heart into her mouth.A、itB、whichC、that

It‘s a good _______ to eat with the mouth closed.A. customB. habitC. wayD. style

阅读材料，回答题： Look After Your VoiceOften speakers at ameeting experience dry mouths a

【C11】A．literacyB．mathsC．literatureD．physics

The most flexible speech organ is（are)A．tongue.B．lips.C．mouth.D．vocal cords.