question about "what"

[Jocelyn]

English Grammar Tests, Elementary Level

ESL/EFL Test #47 "Question Words", question 6

......... would you like on your hamburger?

(a) How
(b) What
(c) When
(d) Which

English Grammar Tests, Elementary Level

ESL/EFL Test #47 "Question Words", answer 6

What would you like on your hamburger?

Correct answer: (b) What
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I like to get an explanation for each test question, thank you

Jocelyn

[Alan]

Hi,

In this sentence the question is about what (sauce, cheese, oil?) you would like to have on your hamburger.

Alan
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English as a Second Language
You can read my ESL story Phrasal Verbs/look