Questões de Concurso Militar EEAR 2019 para Sargento da Aeronáutica - Aeronavegantes e Não-Aeronavegantes

Read the text to answer question. 
GIFT GIVING All over the world, people give gifts. But they give different things in different ways.  In Japan, people often give gifts. But they never open _____ in front of the giver. In the United States and Canada, a man often gives _____ girlfriend flowers on Valentine’s Day (February 14). He sometimes gives her chocolate too. In Korea, older people give new money to children on New Year’s Day. They give it to them for good luck.  In Peru, a man gives flowers to _____ girlfriend. But he doesn’t give _____ yellow flowers. They mean the relationship is finished.  
https://www.aperianglobal.com/guide-gift-giving-around-world

 Choose the alternative to have the text completed correctly. 

The adjective form “the best” (line 3) and “nice” (line 4), underlined in the text, have as their comparative forms, respectively:

According to the text, the public school system was in need of changes due to _______________.

The words “become” (line 4) and “meet” (line 6), in bold type in the text, are

The word “astonishing”, underlined in the text, is a / an