PayPal is considered as the 21______ reliable and widely used payment gateway.22______ different online businesses use this facility via cards, debit cards or 23______ the website itself. The PayPal payment system is 24______ user-friendly that can be installed in online shopping cart software that 25______ safe and easy e-commerce website solutions. Companies 26______ their own URL can insert code into the website 27______ payment gateways provided by any reliable service provider. You can also 28______ for a free trial for the shopping software.
According to experts,29______ increase web traffic flow to an e-commerce website, solutions 30______ can be used are as follows—graphic designing, web design of the home page, flash animation, template web page design service and so on.
21.
A.most B.best C.much D.both正确答案A