单项选择题
We （） you that regular orders will follow if this order is executed to our entire satisfaction.
A．ensure B．make sure of C．assure D．insure
单项选择题 Problems of long （） should be settled with great care.
单项选择题 We are sorry that the goods you （） are out of stock at the moment.
单项选择题 We would like you to quote us （） 50 metric tons of peanuts.
