1 . No wonder Hangzhou is expanding________(annual) by 500, 000 to 600, 000 people. (所给词的适当形式填空)

2 . We set up an independent child helpline that provides support and information to hundreds of thousands of children ____________ (每年). （根据汉语提示单词拼写）

3 . And do I do so weekly, monthly or ____________ (annual)? (所给词的适当形式填空)

4 . The industry has grown by 30% ________ (annual) over the past 10 years.(所给词的适当形式填空)

5 . They celebrate their wedding anniversary ________ (annual). (所给词的适当形式填空)

6 . Cars should be tested ________ (annual) to be kept in good condition, otherwise they would be an invitation to accidents. (所给词的适当形式填空)

7 . The exhibition is held___________(每年). (根据汉语提示单词拼写)

8 . Beijing’s new international airport put into use in 2019 serves 72 million passengers   ___________(annual).(所给词的适当形式填空)

10 . According to the WHO,2.4 million people died________(annual) from causes directly related to air pollution. (所给词的适当形式填空)