TASK DEFINITION: In this task, we ask you to rewrite a sentence in simple English without changing its general meaning. Essentially, you want to make the sentence easier to read by using simpler words, utilizing more straightforward sentence structures, and omitting non-essential information etc.
PROBLEM: These territories ' legislatures , their Assemblies , exercise powers devolved to them by the Commonwealth ; the Commonwealth Parliament remains able to override their legislation and to alter their powers .

SOLUTION: The Commonwealth Parliament keeps the power to overturn territorial legislation and to give or take powers .

PROBLEM: He was the first Chair of the British Association for Applied Linguistics , 1967 – 70 , and was instrumental in developing the field of applied linguistics in the United Kingdom .

SOLUTION: He was the first chairman of the British Association for Applied Linguistics , 1967-70 .

PROBLEM: Reduction mammoplasty ( also breast reduction and reduction mammaplasty ) is the plastic surgery procedure for reducing the size of large breasts .

SOLUTION:
Breast reduction is a plastic surgery to make human breasts smaller .