did you ---your things outsideA.leftB.forget C.forgot D.leave说明原因

问题描述:

did you ---your things outsideA.leftB.forget C.forgot D.leave说明原因

leave
前面助动词为did,过去时态,后面动词要用原形
句型为:
leave something somewhere
把某物忘记在某处(地)