Use the correct tense of the verb in parentheses

use the correct tense of the verb in parentheses
1 if i see him, i (give) ............... him a lift.
2 ice (turn) ................... into water if you heat it.
3 if you see him, (tell) ....................... to ring me up.
4 if you (not believe) ...................... what i sary, ask your mother.
5 if you come here, they (not let) ..................... you in.
6 if you (not like) .................... it, i'll bring you another.
7 if tomorrow (be) .................. sunday, i won't get up early.
8 Tom (not, open) .................. the windows if the wind becomes stronger.
9 Mary will give you a ring if she (not, work) ................. this evening.
10 if the young man (take) .................... off his coat, he will get a cold.
11 if you sing well, everyone (clap) ..................... their hands.
12 if you feel sad, (talk) ................. to me.