Underline the correct prepositions in the sentences.
(подчкркните правильные предлоги в предложениях )
1.walk through / near reception, and take the lift to / at / in the third floor.
2. go around /along / past this corridor, and it’s the third door on / at the left.
3. if you go past / through / behind the swing doors, you’ll see the waiting room.
4. the toilets are at the bottom of / over the stairs.
5. physiotherapy is in front of /opposite this department, so just
6. go past / down the restaurant, take the stairs up to / along /on the second floor, and the ward is out of / opposite the lift.
2. The scientist is developing a new source of energy. The scientist was developing a new source of energy. The scientist will be developing a new source of energy.
3. The engineers are working at the problem of using solar power. The engineers were working at the problem of using solar power. The engineers will be working at the problem of using solar power.
4. The people are not using poor methods of research. The people were not using poor methods of research. The people will not be using poor methods of research.
5. The students are not having an interesting discussion. The students were not having an interesting discussion. The students will not be having an interesting discussion.
6. The sun is not shining brightly. The sun was not shining brightly. The sun will not be shining brightly.
7. The workers are complaining about unsafe working conditions. The workers were complaining about unsafe working conditions. The workers will be complaining about unsafe working conditions.
8. The government is trying to protect consumers. The government was trying to protect consumers. The government will be trying to protect consumers.