A. careful B. sure C. certain D. thinkful
A. know B. remember C. study D. keep
A. than B. of C. in D. for
A. plays B. gets C. takes D. wins
A. People's blood types decide their life. B. People's blood types decide their personality. C. A person of blood group O does well in thinking. D. A person of blood group AB is good at dealing with problems.