Online customers will get a 20 percent discount on first and business class______.

admin2013-06-06 11

问题 Online customers will get a 20 percent discount on first and business class______.

选项 A、upgrade
B、upgrades
C、upgraded
D、upgrading

答案B

解析 first and business class——在句子中充当on的宾语，所以空格处应当是名词，这样答案就在(A)项和(B)项中。upgrade表示“升级”，是可数名词，因此复数形式的(B)项是正确答案。

转载请注明原文地址:https://kaotiyun.com/show/YWad777K

托业阅读

相关试题推荐

随机试题

最新回复(0)