这条街给人一种冷清的感觉。

The street gives a feeling of ___loneliness.

退休后，他常常感到孤独，因为没有人和他聊天。

After retirement, he often felt ___lonely because there was no one to talk to.

长时间独自在家让他感到深深的孤独。

Staying home alone for long periods made him feel deep ___loneliness.