1. B Selecting a mobile phone for personal use is no easy task because technology _____ so rapidly.

A. is changing        B. has changed       C. will have changed          D. will change

2. B I _______ ping-pong quite well, but I haven’t had time to play since the new year.

A. will play              B. have played           C. played                      D. play  

3. A Visitors ______ not to touch the exhibits.

A. will request           B. request              C. are requesting          D. are requested

4. A In such dry weather, the flowers will have to be watered if they _________.

A. have survived         B. ate to survive          C. would survive                D. will survive