1.  A: How long you (be) unemployed?
     B: I'm not unemployed now. I just (start) a new job.
     A: How you (find) the job?
     B: I (answer) an advertisement in the paper.

A: How long HAVEyou BEEN unemployed? B: I'm not unemployed now. I HAVE just STARTED a new job. A: How DID you FIND the job? B: I ANSWERED an advertisement in the paper.

2.  A: What all those guys (look) at?
     B: There (be) an accident.
     A: You (see) what (happen)?
     B: Yes, a bus (run) into a truck

A: What DID all those guys LOOK at? B: There HAS BEEN an accident. A: DID you SEE what HAPPENED? B: Yes, a bus RAN into a truck

3.  A: Susan (feed) our dog Barker?
     B: Yes, she (feed) him after breakfast.
     A: What she (give) him?
     B: She (give) him some meat.

A: HAS Susan FED our dog Barker? B: Yes, she FED him after breakfast. A: What DID she GIVE him? B: She GAVE him some meat.

4.  A: Who you (vote) for at the last election?
     B: I (vote) for Mrs. Hillary Clinton.
     A: I guess she (not be) elected.
     B: No, she (lose).

A: Who DID you VOTE for at the last election? B: I VOTED for Mrs. Hillary Clinton. A: I guess she WASN'T elected. B: No, she LOST.