【C7】A．tipsB．mouthC．lipsD．tongue

I know you’ve got a smooth tongue , so don’t talk

I know you’ve got a smooth tongue , so don’t talk

A Creole can be learned by children as a mother tongue , but a pidgin is always a se

A．tipsB．noticesC．adviceD．suggestion

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

Acreole is a mixed language which has become the mother tongue of a speech community.