The one to your most right is the letter THE as in the word That. Then the letter D same as in English Drum . Next is a tricky one DE - put the tongue on the palate as if to say D , then roll it back further and unroll it rapidly without touching the palate. The special H makes an aspirated sound as in the words outlined below . See if you can read them
Here are the answers.
Note that 2.DHOOD and 1. DHOD are pronounced the same although technicaly the later is not correct. This is a problem for beginners as vowel marks like the pesh mark in 2 are often left out.