Name 3 important inventions and say all what you about them

имя 3 важных изобретений и сказать все, что вы о них 

имя 3 важных изобретений и сказать все, что вы о них

  how long have you been trying to find a job?

for three years. it was really difficult.

how many jobs have you had?  

about thirty, maybe more i have been doing everything.

how long have you been standing here today?  

i have  been waiting since 8: 00 this morning, and i'm freezing.  

1. can

2. could

3. were able 

4. can

5. are able

6. can

(не уверенна)