题目类型：
单选题
题目内容
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.
25.
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.
25.
正确答案
B
AI解析
根据句意，此处需要填入一个动词，表示确保的意思。由于主语是"The PayPal payment system"，为第三人称单数，因此应该使用动词的第三人称单数形式。选项B "ensures" 正是动词的第三人称单数形式，符合语法要求。其他选项要么是动词原形，要么是动词的复数形式，都不符合句子的语法结构。因此，正确答案是B。