医生在手术室协助主刀医生完成手术。
The doctor ___assisted the surgeon during the operation.
护士协助病人下床行走。
The nurse ___assisted the patient in walking out of bed.
他在手术过程中协助主刀医生。
He ___assisted the surgeon during the operation.
志愿者的帮助使这次活动顺利完成。
The volunteers ___assisted in making the event a success.
