Condition with 'should'

[Leidy]

Test No. errors/inter-9 "Conditionals", question 1

If I win the lottery, I should buy you a very big car as a present.

(a) If
(b) win
(c) should

Test No. errors/inter-9 "Conditionals", answer 1

If I win the lottery, I will buy you a very big car as a present.

Correct entry: will
The error was: (c) should
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what are the instructions?

[Alan]

Hi,

This is the pattern:

If I win the money, I shall/will buy a car.
If I won the money, I should/would a car.
If I had won a car, I should have/would have bought a car.

Alan
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English as a Second Language
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[Katarzyna]

[Torsten]

Katarzyna, your sentence is correct. The thing is that in this particular question we concentrate on the first conditional rather than conditional II and thanks to the forum we can discuss questions like yours too.
So, to sum it up, here are the two possible versions:

If I win the lottery, I will buy you a very big car as a present. (Conditional I)

If I won the lottery, I should/would buy you a very big car as a present.
(Conditional II)
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Test Of English for International Communication
TOEIC Preparation & TOEIC Vocabulary