5 times you should NOT use a preposition in English

source: Espresso English        2018年1月28日
Advanced English Grammar Course: https://www.espressoenglish.net/adv...
Prepositions like in, of, at, from, and to are used very frequently in English!
However, there are some cases in which you shouldn't use one – and in today's lesson, you'll learn 5 times you should not use a preposition.