The thief took away the woman ’s wallet without ________.
A、beingseenA
without是介词，其后的动词必须用动名词形式。根据句意，此句需要用被动形式，所以答案是A。
Lyingundertheskull,thehumanbraincontainsanaverageoftenbillionnervecellscalled______.
Iaskedhimto________meafewminutessothatwecouldgooveralltheproblems.
_______isafactthatEnglishisbeingacceptedasaninternationallanguage.
Hetalkedalotaboutthingsandpersons________theyrememberedintheschool.
Countrylifeisbetterthancitylife________itoffersfreshairandnoiselessenvironment
