Rewrite the following sentences using an IF construction:

a.- She is very shy; she doesn't enjoy parties
b.-I didn't see the signal, so I didn't stop
c.-I didn't know your number. so I didn't ring
d.-He doesn't take any exercise that's why he is so unhealthy.
e.-Tell the police the truth; I'm sure they will believe you
f.-She doesn't work overtime, so she doesn't earn as much as I do
g.-We only came by bus because there were no taxis.
h.-It was raining .That's the only reason why I didn't take the children to the beach