1. S? is /s/ at the beginning of a syllable or before a voiceless consonant, for example:

sit /s?t/ vt.& vi. sit.

seat /si:t/ n. Seat.

sell?/sel/ vt.& vi. sell, sell. ?

sold /s?ld/ v. sell, sell.

2. S? is between vowels or before voiced consonants /z/, for example:

music /?mju:z?k/ n. Music.

husband /?h?zb?nd/ n. Husband.

3. Sh means /?/, for example:

sheep /?i:p/ n. Sheep, sheep.

ship /?p/ n. Ship.

dish?/d?/ n. plate;? tableware.

fish?/f?/ n. Fish, fish meat.

shape /?e?p/ n. Shape.

shake /?e?k/ vt. Shake;? shake one’s head.

4. Sc- is pronounced as /sk/ or /s/, for example:

Scotland /'sk?tl?nd/ n. Scotland.

scarlet /?skɑ:l?t/ n. Scarlet.

scene /si:n/ n. scene.

science /?sa?ns/ n.Science.

5. Words ending with a vowel + o must be added with -s and pronounced [z]. For example:

zoo-zoos Zoo.

radio-radios Radios.