题目内容：
To:Dalmain Shipping Co
Re our phone conversation: if your company doesn't deliver within seven days, we shall get the goods from a different supplier.
This means that Dalmain Shopping Co must A．get the goods from another company.
B．phone to confirm when the goods will be delivered.
C．deliver the goods on time or lose the order,
参考答案：
答案解析：