软饮料按其主要功能可分为（）
A.普通饮料
B.矿泉水饮料
C.运动饮料
D.保健饮料
参考答案：A, B, C, D
It's the third time _______ late this month.
[ ]
A. that you arrived
B. when you arrived
C. that you've arrived
D. when you've arrived
银行履约保函通常为合同金额的( )%左右。
A．5
B．7
C．10
D．20
