从右栏选项中选择左栏各句的正确应答，并将答题卡上该选项涂黑。

小题1: How long does it take you to get to school?

小题2: Would you Like coffee or tea, Cindy?

小题3: Could you please clean your room?

小题4:When is your birthday, Emma?

小题5: What's this in English, Victor? 

在对外贸易中，以（）计价结算、清偿，一般不存在因汇率发生变动而蒙受损失的可能。

A.外币

B.本币

C.软币

D.硬币