by far

这是我今年读过的书中最有趣的一本。

This is ___by ___far the most interesting book I've read this year.

我尝过很多本地菜肴，但这个绝对是最好吃的。

I've tried many local dishes, but this is ___by ___far the most delicious.

她的演讲绝对是会议上最令人印象深刻的。

Her presentation was ___by ___far the most impressive at the conference.

她是比赛中最有才华的歌手。

She is ___by ___far the most talented singer in the competition.

在我参观过的所有城市中，巴黎是最美丽的。

Among all the cities I've visited, Paris is ___by ___far the most beautiful.

这是我参加过的最难的考试。

This is ___by ___far the hardest exam I have ever taken.