Question to tense
Sentence: The second major reason of noise in our cities is low-flying aircraft which have either just taken off or are just landing at local airport.
Question: I think two case (take off and land) are positioned on same level (which connected with "either"), but why the former one is written on present perfect and the later one is not.
I NEED HELP...OTL
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Corrections · 5
1
Question to tense
Sentence: The second major reason for noise in our cities is low-flying aircraft which have either just taken off or are just landing at local airports.Question: I think two case (take off and land) are positioned on same level (which connected with "either"), but why the former one is written on present perfect and the later one is not.
I NEED HELP...OTL
What makes noise? PLanes taking off and planes landing.
The second one is not in present perfect because aircraft which have landed do not make noise. It is the aircraft which are landing that make the noise.
1
The latter can also be written in the present perfect in this example as well.
Example:
The second major reason for noise in our cities are low-flying aircrafts which have either just taken off or have just landed at the local airport.
It's just a matter of preference.
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