Fold it in the right way

[fetih]

Test No. incompl/inter-16 "Letter Writing", question 3

Before you put the letter in the envelope, make sure you ......... it in the right way.

(a) fold
(b) double
(c) treble
(d) hold

Test No. incompl/inter-16 "Letter Writing", answer 3

Before you put the letter in the envolope, make sure you fold it in the right way.

Correct answer: (a) fold
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could you explain this question

[Alan]

This means that to make sure that the letter fits into the envelope, check that you have folded it into the right size/shape.
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English as a Second Language
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