A.unknown
B.dealing
C.agreeing
D.unfamiliar
[单选题]To be a successful speaker, it is essential for you to know why you are spe
[单选题]To be a successful speaker, it is essential for you to know why you are spe
[单选题]To be a successful speaker, it is essential for you to know why you are spe
[单选题]To be a successful speaker, it is essential for you to know why you are spe
[单选题]To be a successful speaker, it is essential for you to know why you are spe
[单选题]To be a successful speaker, it is essential for you to know why you are spe
[单选题]To be a successful speaker, it is essential for you to know why you are spe
[单选题]To be a successful speaker, it is essential for you to know why you are spe
[单选题]To be a successful speaker, it is essential for you to know why you are spe
[单选题]To be a successful speaker, it is essential for you to know why you are spe