Вопрос по английскому языку:

Complete the sentences with the opposite to the underlined adjective.
1 He’s usually generous but he can sometimes be quite ____________.
2 It’s better to be ____________ about the future than pessimistic.
3 She’s very quiet but her sister is really ____________.
4 Luckily, there are more polite people in the world than ____________ ones!
5 When you go for a job interview you must be ____________, not shy!