нужно составить предложения в Past Perfect Passive 1) by2020/school building/reconstruct

2. by2009/three new teachers/hire

3. by 2010/two new classes/open

4. by 2013/some new subjects/introduse/in the school curriculum

5. by2012/severalnew educational project/launch

6, by 2018/swimming pooi/build

School building had been reconstructing by 2020.

Three new teachers had been hiring by 2009.

Two new classes had been opening by 2010.

Some new subjects had been introdusing in the school curriculum.

Several new educational project had been launching by 2012.

Swimming pool had been building by 2018.