Explanation: I really must write that letter

[Kerman]

English Language Tests, Intermediate level

ESL/EFL Test #73 "Modal Medley", question 5

I say to myself each morning I really ......... write that letter.

(a) can
(b) must
(c) might

English Language Tests, Intermediate level

ESL/EFL Test #73 "Modal Medley", answer 5

I say to myself each morning I really must write that letter.

Correct answer: (b) must

Your answer was: incorrect
I say to myself each morning I really can write that letter.
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I don't understand this sentence
please explain
thank you
Kerman

[Alan]

Hi,

The idea is that you are trying to force yourself to do something and here it is to write a letter that should have been written a long time ago. It's like when you say to yourself: I really must give up smoking.

A
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English as a Second Language
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