Help me with these two questions, please. ONLY CORRECT ANSWERS! 
 Complete the sentence with the correct form of the verb: Yo no __________ la lección.
 Question 2 options:
 a) 
 Entendo
 b) 
 Entiendes
 c) 
 Entiendo
 d) 
 Entendemos
 Complete the sentence with the correct form of the verb: Algunos pájaros no _________ (volar).
 Question 10 options:
 a) 
 Vuelan
 b) 
 Vuelen
 c) 
 Volan
 d) 
 Vuele