We will buy your products_____that the quality is good and the price is right.

问题描述:

We will buy your products_____that the quality is good and the price is right.
A.if
B.provided
C.unless
D.as long as

【答案】B providedconj.如果
意思是:如果质量良好,价格合理,我们将购买你们的产品.
不选A的原因是:if后面不用接that.