Fill in the gaps (1-4) with the right words (А-E). There

Fill in the gaps (1-4) with the right words (А-E). There is one extra word.
1. How _____ have you been waiting for me?
А) teaching
2. How many people ______________ you invited?
B) long
3. How long have you been_________________?
C) have
4. How _________________ fish have you caught? D) been
E) many