酒店价格每晚从100美元到500美元不等。

The hotel prices ___range ___from $100 ___to $500 per night.

项目预计持续时间在三个月到六个月之间。

The project duration is expected to ___range ___between three ___and six months.

会议涵盖从技术到医疗保健的各种主题。

The conference covers topics ___ranging ___from technology ___to healthcare.