根据句意，用所给单词的适当形式填空。
His father used to smoke very ____________ (heavy).
When they saw their favourite film stars, they shout with ____________ (excited).
Though the old man is in his ____________ (nine), he is still very healthy.
The house is on fire, we have to run out for ____________ (safe).
Though he was born in France, he can’t speak ____________ (France).