Put the verbs in brackets into the correct tense. use the past simple, past continuous or past perfect. 0. the dog bit (bite) the little girl and she started to cry. 1. robert (fall) off the ladder while he (paint) his house. 2. when i go to school, i (realise) that i (forgot) my biology homework. 3. what (you/do) yesterday at five p. m.? 4. anna didn't see the children. when she (arrive), they (go) to bed. 5. when i was a teenager, i (spend) all my free time playing computer games.

0. bit. 1. fell, was painting. 2. realised, had forgotten. 3. were you doing 4. arrived, had gone 5. used to spend 

The majority of economists were sure that immigration benefited our country financially.
According to the economists' forecasts, the unemployment rate will  increase after the new economic reform is implemented.
If you want your business to prosper, you should hire an experienced economist.
Our company is currently recruiting PhD economists having computer skills.
The chief economist was fired as he couldn't cope with his work successfully.
The problem of tax benefits was being discussed by the leading economists at the yesterday's conference.
The market conditions had been carefully studied by the economist before he made up a detailed plan for developing their company.

The majority of economists were sure that immigration benefited our country financially.
According to the economists' forecasts, the unemployment rate will  increase after the new economic reform is implemented.
If you want your business to prosper, you should hire an experienced economist.
Our company is currently recruiting PhD economists having computer skills.
The chief economist was fired as he couldn't cope with his work successfully.
The problem of tax benefits was being discussed by the leading economists at the yesterday's conference.
The market conditions had been carefully studied by the economist before he made up a detailed plan for developing their company.