To express yourself clearly, you need a good active vocabulary. That’s not just being able to know lots of words — it means actually being able to use them correctly.1 Tip:When you learn a new word, try to learn all the forms of that word. ...
(68)___ a person is unable to perform certain mental functions.It's a good idea(69)___(train) our brain by learning ways to increase our memory or intelligence.I like to stretch my brain by doing a crossword or a Sudoku puzzle.There's also evidence that learning a(70)___(two) ...