Only the first one, 'That is worth reading' is correct. 'Worth' is an adjective, and it is followed by the gerund (ing form).
Don't believe anyone who tells you that you can say 'worth to' with the infinitive - this is wrong.
27 Haziran 2016
3
6
4
That is worth reading
27 Haziran 2016
1
4
4
That is worth reading
27 Haziran 2016
1
4
0
You should use "reading"
28 Haziran 2016
0
0
0
It/ That is worthy to read.
27 Haziran 2016
0
0
Hâlâ cevap bulamadın mı?
Sorularını yaz ve ana dil konuşanlar sana yardım etsin!