Trả lời: b. 'You can become a memory champion if you work hard.'
Trả lời: 1. American2. body and brain3. grandparents4. all5. buy
Trả lời: 1. true2. true3. false4. false5. false
Trả lời: 1. He can remember 248 numbers.2. Training is a very important part of Dellis's work.3. He trains his brain every day.4. He first became interested because his grandmother had memory problems.5. The best way is to change the word or number into a picture.
Trả lời: 1. hard-boiled2. reduces3. scrambled4. nutrients