—How was your hometown         ?

—Great changes took place.

A. in 1990s         B. in the 1990s     C, in the 1990’s       D. in the 1990s’

—How was your hometown         ?
—Great changes took place.
A. in 1990s         B. in the 1990s     C, in the 1990’s       D. in the 1990s’

---How was your hometown ______ ?
---Great changes took place.

1. A.
   in 1990s
2. B.
   in the 1990s
3. C.
   in the 1990’s
4. D.
   in the 1990s’

Many great changes took place in ________ century．

1. A.
   the 20th
2. B.
   20th
3. C.
   20
4. D.
   the 20