英语求救!Fill in the blanks with appropriate transitional words.

英语求救!Fill in the blanks with appropriate transitional words.
Fill in the blanks with appropriate transitional words.
even though otherwise in contrast in conclusion
for example and but moreover
Optimistic thinking helps fuel success.To succeed,people need to do more than just thinking optimistically.Hard work and persistence are the key ingredients to success but add optimism and you have an even higher chance of success.(1) ________________,imagine two company employees,both intelligent and hardworking collaborating on a long – term project.They make substantial progress working together until they encounter a difficult problem.The pessimistic person becomes increasingly discouraged,and he finally sees no alternative (2) ________________ to quit the project.
(3) ________________,the optimistic person is temporarily discouraged but knows that the problem can be solved.The optimist begins looking at the problem from several different angles (4) ________________ he/she consults several other people until a solution is reached.(5) ________________ the two employees were both hardworking and intelligent,optimistic thinking led the project forward to success.