Complete the sentences by putting Chinese into English. 1. I was completely ( ) (没意识到) the problem. 2. ( ) (一项新的研究表明) that physical activity may help students do better in their classes. 3. ( ) (色彩心理学) is the study of how colors affect our emotions. 4. Of course, these test results might ( ) (随着文化的不同而有所差异). 5. So green may ( ) (会让美国人想到钱).