on, in, upon, under, at

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Offroad

Key Member
Joined
Feb 9, 2008
Member Type
Interested in Language
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Brazilian Portuguese
Home Country
Brazil
Current Location
Brazil
Dear teachers...

Please... Which ones are correct grammatically?

The reactions took place _____________ the temperatures of 300 and 350 K.

a) on
b) in
c) upon
d) under
e) at

I go for a), which is 'on'.

Many thanks
 

billmcd

Key Member
Joined
Mar 27, 2009
Member Type
English Teacher
Native Language
English
Home Country
United States
Current Location
United States
Dear teachers...

Please... Which ones are correct grammatically?

The reactions took place _____________ the temperatures of 300 and 350 K.

a) on
b) in
c) upon
d) under
e) at

I go for a), which is 'on'.

Many thanks

I would use "at" and probably delete "the"(AmE).
 

SoothingDave

VIP Member
Joined
Apr 17, 2009
Member Type
Interested in Language
Native Language
American English
Home Country
United States
Current Location
United States
"At"
 
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