Occur vs. happen

[Boing]

Test No. incompl/inter-19 "A Collision - Finish this Story", question 8

I'm walking right up to the crowd now to see ..........

(a) what's happen
(b) what's happens
(c) what's happend
(d) what's occurring

Test No. incompl/inter-19 "A Collision - Finish this Story", answer 8

I'm walking right up to the crowd now to see what's happend.

Correct answer: (c) what's happend

Your answer was: incorrect
I'm walking right up to the crowd now to see what's occuring.
_________________________

Why what's occuring isn't correct?

[Alan]

Occur is used specfically for incidents/situations/events etc and not for general matters.
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English as a Second Language
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[Boing741]

[Jan]

Hi,

could you please help me to sort this out:

answer c)"happend" without -ed
answer c)in test "happened" with -ed :

is it normal for english grammar or
maybe it is done by pupose to confuse poor students
Jan

[Torsten]

Hi Jan, happen is the infinitive form and happened can be the simple past form of the past participle.
The tests and the forum help you improve your English.
Regards
Torsten
_________________
Test Of English for International Communication
TOEIC Preparation & TOEIC Vocabulary

[Conchita]

There is a typo in that particular test question:

'happened' is spelt 'happend'.

And that is obviously what has confused Jan.

[Jan]

Thank you ,
native speakers are in different dimensions
regards
Jan