Nowhere in nature is aluminum found free, owing to it always ______ with other e

游客2023-11-08 60

问题 Nowhere in nature is aluminum found free, owing to it always ______ with other elements, most commonly with oxygen.

选项 A、being combined
B、having combined
C、to combine
D、combined

答案 A

解析非谓语动词题。owing to是介词，后应接名词或动名词，所以排除选项C 和D 。而根据题意，后面应该接被动语态形式，进而排除选项B 。

转载请注明原文地址:https://www.tihaiku.com/zcyy/3168023.html

相关试题推荐

随机试题

最新回复(0)

MyfatheralwayshopesthatIcould______withhisfriends’childrenbutIprefer