Iwonder why he has been acting so strange these days. —Recentpressure at work may ______ his behavior.

Isn’t that Ann’s husband over there —No, it _______be him. I’m sure hedoesn’t wear glasses.

下列各句中划线字活用类型与其他三项不同的是（ ）

You are late again，Tom?—Sorry，but I got ________a heavy traffic jam.

It was probably at that moment _____ I understood whatkindness really was.