Choose the answer that best completes the following sentence. padres son viejos. a. mi c. tus b. las d. el

C. Tus padres son viejos.

1. David Hilbert was the perfect example of a celebrated, established and meticulous mathematician
2. David Hilbert achieved grand successes and great changes in his personal life as well. 
3.
David Hilbert married his second cousin, KŠthe Jerosch on October 12, 1892 and the following year, Franz, their son, was born. 
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