Выберите единственно правильный вариант из четырех предложенных:

1. My uncle works ____ a pilot in Moscow.
a) such b) for c) like d) as

2. She was much ____ after she had changed her job.
a) happy b) happier c) more happier d) more happy

3. Dan ____since he was five.
a) is dancing b) has been dancing c) was dancing d) has dancing