Talk about changes. what has been the most significant change in your life?
talk about recent changes that have happened in an organization you know well.

the kremlin itslef wasn't called the fire. that was the name of the red square until 17th century because of numerous cases of fire that took place in and near kremlin and other neighbour buildings.

1.you will never finish your work

2.you continue to do like this

3.i would make it another way+

4.i would leave to america

5.if i haven't come

6.we shouldn't go on refueling

1-с, т.к. после who ставится is, но т.к. есть last sunday как показатель прошедшего времени ставим was.  2-а, т.к they-множественное число, из предложенных вариантов подходит только а)) 

1. am 2.has 3.have 4.is 5. have 6. are 7.is 8.is 9.has 10.is 11.is 12.are 13.are 14.is 15.are, are 16.has