Complex sentence: In 1937 he has a solo show with the Galleria del Milione in Milan andin 1938 with galleria della Cometa in Rome and has a solo show at the 21st Biennale in Venice.
Split into simpler sentences: In 1937 he has a solo show at the Galleria del Milione in Milan. In 1938 at the Galleria della Cometa in Rome and the same year has a solo show at the 21st Biennale in Venice.