It is a 4 choice question of English words studying in high school students.
There are three game types below.
To learn English, to compete grades, feel free to select according to the purpose.^^

1, Training Mode
It is a self-study mode that continues to answer questions.

2, Challenge Mode
It is a battle mode that ranks by consecutive correct answer counts.

3, Time Attack Mode
It is a battle mode that ranks by answer time of 30 questions.　

There are two ranks in their own device rank and world rank.
I think you will be No. 1.^^

For details, please see the support URL.
Thank you!