Great changes have taken place in my hometown since 1978.()

___________new buildings will be built in my hometown. A． A great deals ofB． A

In our company, great changes ________ since the new manager came.A．took placeB．take place

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