Which interrogative pronoun should replace the blank space in the following sentence?: ___ happened?

1 Answer
Mar 7, 2018

Answer:

#color(red)("What")" happened?"#

Explanation:

Of the interrogative pronouns:
#color(white)("XXX")#Who
#color(white)("XXX")#What
#color(white)("XXX")#Why
#color(white)("XXX")#When
#color(white)("XXX")#Where
#color(white)("XXX")#Which
#color(white)("XXX")#How
only What can be used without any additional word before "happened"