2. swimming birds of the antarctic

One of the differences between some whales and dolphins is that …..
whereas all dolphins have teeth, some whales don’t have any
whales are less aggressive than dolphins and not as big as them
whales don’t provide milk for their young, but dolphins do
while all dolphins are warm-blooded, whales are cold-blooded
although dolphins have lungs for breathing, most whales don’t

39. The stories of my grandmother most _____ have never been heard should have been made into a book so far.

of whom
of which
how
for whose
in that

40. In 1453, the Ottomans adopted Hagia Sophia _____ their principal place of worship and it was converted _____ a mosque.

such / as
like / for
as / into
for / rather than
as to / regarding