In his article Unified Communications Revolution Bill Gates says the following:
“You may have separate identities for email and instant messaging, plus a number you call for audio conferencing and a code you must input.”
Now, I was not aware that input can be used a verb in this way too. I mean, what is the difference between these two phrases:
… a code you must input
… a code you must put in (phrasal verb)
By the way, what is the opposite of a phrasal verb?
TOEIC short conversations: Plant redesign[YSaerTTEW443543]