1 . The ________ (diverse) of the shells makes the little boy excited.(所给词的适当形式填空)

2 . There is a need for greater________ (diverse) and choice in sport activities. (所给词的适当形式填空)

3 . Does television adequately reflect the ethnic and cultural __________(diverse) of the country?（所给词的适当形式填空）

4 . When clicking on the link to the promotional web page, you will find a great ______(diverse) of the films on show. (所给词的适当形式填空)

5 . Few countries have as rich a _____(diverse) of habitat as South Africa. (所给词的适当形式填空)

6 . They believe that the greater the ______________(diverse) is, the more stable the ecosystem will be. (所给词的适当形式填空)

7 . These animals consumed large amounts of vegetation (植被), which reduced plant________(diverse) in the park. (所给词的适当形式填空)