Which is the right sound of the word “this”

Miss Gao teaches _____ English. We all likeher lessons.

How do you find the match between Spain and Switzerland?—It’s ！ Powerful Spain lost the game by 0∶1.

The girl had been suffering from the lung cancer, yet she acted as if nothing__________ to her while we were together.

The tomato juice left brown ____ on thefront f my jacket