Choose the best answer A, B, C or D to fill in the blanks.

2. There has been a _____ increase in high-rise buliding over the last five years.

A. popular           B. considerable              C. big                   D. lot

3. It was very ______ that a couple in the past could have about 5 to 10 children.

A. shared              B. obvious                     C. popular            D. common

4. In the old days, people ____ phrynium leaves before they made Chung cakes.

A. had collected    B. have gained                         C. would collect   D. had gained

5. We really like the photo ____ in the school’s 70th anniversary.

A. exhibit             B. exhibiting                            C. exhibition                  D. exhibitioner