Pound vs. throb

[Mic]

English Synonym, Elementary Level

ESL/EFL Test #68 "Synonyms for beat and strike", question 4

When she saw him, her heart began to ..........

(a) hit
(b) strike
(c) pound
(d) whip

English Synonym, Elementary Level

ESL/EFL Test #68 "Synonyms for beat and strike", answer 4

When she saw him, her heart began to pound.

Correct answer: (c) pound

Your answer was: incorrect
When she saw him, her heart began to strike.
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pound?

why?

[Mister Micawber]

.
Hearts pound or throb-- that is the collocation. As well, these verbs can be used intransitively, where strike is transitive unless used of such as a clock or an army.
.
_________________
Native English teacher at Mister Micawber's

[Wms]

Hi,
What does pound mean in this sentence ?
Thanks

[Mister Micawber]

.
beat strongly and rhythmically.
.
_________________
Native English teacher at Mister Micawber's