Great changes have taken place in China since the introduction of the reform. and opening

With the development of science and technology, great changes have taken place in our dail

Great changes __________ in our institute in the last few yearsA.have taken placeB.has tak

Some desirable changes have taken place in

They all agreed that the changes that have taken

They all agreed that the changes that have taken

Great changes __________ in our institute in the last few yearsA.have taken placeB.has tak