WAEC - English Language (2011 - No. 47)
From the words or group of words lettered A to D, choose the word or group of words that best completes each of the following sentences:
All................the president said was reported in the dailies.
what
which
that
those
Wyjaśnienie
All that the president said was reported in the dailies.
''That'' is correct because ''all what'' is always wrong, and you should use either ''all that'' (or everything that, the words that, etc) or what. ''That'' is a relative pronoun like who/whom, whereas ''what'' is a nominal relative pronoun. The two words fulfill distinct grammatical parts, and cannot be interchanged