Check the price before you decided___to buy it.为什么是whether不是if?具体理由!

Check the price before you decided___to buy it.为什么是whether不是if?具体理由! 英语翻译Suggest you to check the product and price in below link and I have to open the packing as PRC customs will check it. Price可数还是不可数下面这句中的price是用单数还是复数.Please check the price/prices as follow.我这price用中文表示的是好几种的价格. 这个东西税后价格是多少钱? Could you check the price after tax? 是这样说么? 英语翻译scanning controller.this area lends itself to high levels of shrinkage through 'give-aways' if the ticket price is different to the scanning price at the cashier check out,as discussed under the shrinkage module. the price of the check the prices check politics at the Please check the highlighted check with the ticket 请问这个句子用什么语法I will check and quote a price with shipping to you once I receive the pictures or links of the tops you need?还是I will check and quote a price with shipping to you once I receive the pictures or the links of the t the price kuai kuai the price of THE PURCHASE PRICE怎么样 the price of The Price of Pay The Price 歌词 make the price 20%