Study

Xinfu

November 16, 2015 10:22 AM

Study

Could I use on? (not of)

-A study __ efficient ways teaching verbs.

I can only find of in dictionaries, but they can't include everything, so I'm not sure.

Rusty

November 16, 2015 04:13 PM

Both can be used.

Xinfu

November 17, 2015 03:25 AM

Excellent answer. Thank you.

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