How to use rise and raise?

[Lola]

Common Errors in English, Advanced Level

ESL/EFL Test #12 "Latin Words", question 4

The scheme was to try and rise the morale of the workers and make them feel more cheerful.

(a) scheme
(b) rise
(c) morale
(d) cheerful

Common Errors in English, Advanced Level

ESL/EFL Test #12 "Latin Words", answer 4

The scheme was to try and raise the morale of the workers and make them feel more cheerful.

Correct entry: raise
The error was: (b) rise

You have not found the error.
The scheme was to try and rise the morale of the workers and make them feel more cheerful.
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Please explan how to use rise and raise?

Thanks

Lola

[Yankee]

Hi

Here is a previous explanation: Difference between raise and rise

http://www.english-test.net/forum/ftopic5599.html

Amy