WHEN/EYES/GET/GLASSES/HAVE/OUR/TO/WE/WEAKER/WEAR/ A. WHEN WE WEAR...

91. When/eyes/get/glasses/have/our/to/we/weaker/wear/

A. When we wear glasses, our eyes have to get weaker.

B. When our eyes wear glasses, we have to get weaker.

C. When our eyes get weaker, we have to wear glasses.

D. When our eyes have to wear glasses, we get weaker.