Choose the correct word(s) :
1. I ....... happier now if the exam had been a bit easier.
( would have been - would be)
2. If I ...... Japanese, I'd have understood yesterday's film.
( had spoken - spoke)
3. If I hadn't had a big lunch, I ...... hungry now.
( would have been - would be)
4. If she ...... exams last week, she would have visited her aunt.
( didn't have - hadn't had )