ability
(the fact of being able to do something):
ꭗ The noise also is destroying my a- of thinking.
√ The noise also is destroying my a- to think.
ab- (skill, expertness, or talent):
ꭗ These exercise by all mean develop your a- of reading.
√ These exercise by all mean develop your reading a-.
a- in (a subject or language): He showed great a- in mathematics.
ꭗ on the other hand, I want to develop my a- of Spanish.
√ on the other hand, I want to develop my a- in English.
ꭗ I want to develop my a- of Spanish. √ I want to develop my a- in English.