It’s ___________ /'nesɪsərɪ/ for us to help parents do chores on weekends.

In fact, listening is just as　　　as speaking in language learning.

This question is so hard that very ______ students can answer it.

- When we are in danger, we need to stay_______.- Exactly. Only in this way can we come up with good ideas.

The football player felf extremely _______________ after they won the game.