YOU SAID:

This is going to be a challenging test

INTO JAPANESE

これは挑戦的なテストになります

BACK INTO ENGLISH

This is going to be a challenging test.

INTO JAPANESE

これは挑戦的なテストになります。

BACK INTO ENGLISH

This will be a challenging test.

INTO JAPANESE

これは挑戦的なテストになります。

BACK INTO ENGLISH

This will be a challenging test.