Is Laura very tired? Then, she must go to sleep.
If Laura .........................very tired,she...........................to sleep.
is - must go (will go)
He must exercise regularly to keep fit.
If you.......................regularly,you...................fit
exercises -will keep
If she takes the bus,She..........................early.
will arrive
If you.....................hard ,You will pass the test
study
If Sam........................some medicine,he..........................well
takes-will become
Peter eats too much and he feels sick.
If Peter.........................he............................feels sick.
doesn't eat - won't feel
Brush your teeth regularly and you won’t have a toothache.
If ________________________
you brush your teeth carefully,you won't have a toothache
If he ..................faster,he will win the race.
runs