Glance vs. flash a look

[mira]

Synonyms Lesson, Advanced Level

ESL/EFL Test #123 "Synonyms for see and watch", question 3

As Kathryn was in a hurry and so hungry she simply ......... at the menu and ordered a sandwich and some salad.

(a) noticed
(b) glanced
(c) flashed
(d) saw

Synonyms Lesson, Advanced Level

ESL/EFL Test #123 "Synonyms for see and watch", answer 3

As Kathryn was in a hurry and so hungry she simply glanced at the menu and ordered a sandwich and some salad.

Correct answer: (b) glanced

Your answer was: incorrect
As Kathryn was in a hurry and so hungry she simply flashed at the menu and ordered a sandwich and some salad.
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If those words are synonyms, why only one of them is correct?

[Mister Micawber]

.
Glanced and flashed are not synonyms. Glanced at and flashed a look at would be reasonably synonymous here.
.
_________________
Canadian-American native speaker
who teaches English for a living at Mister Micawber's
ESL cafe: Interview with Mr. Micawber