1 . Training for a marathon requires careful preparation and steady, gradual increases in the ________(long) of the runs. （所给词的适当形式填空）

2 . - How big is your school's swimming pool?
-It's 25 metres in l________ and 8 metres in width. (根据首字母单词拼写）

3 . Vacations have ____________ (length) and the work week has shortened. (所给词的适当形式填空)

4 . The board members held a ___________ (length) meeting to decide future policy. (所给词的适当形式填空)

5 . She goes to extraordinary ___________ (length) to keep her private life private. (所给词的适当形式填空)

6 . “I’m still not sure, ”he said at l_________. (根据首字母单词拼写)

7 . Amur River, as the third longest river in China, is second only to the Yangtze River and the Yellow River in l______. (根据首字母单词拼写)

8 . Every day, Mikes runs a ________ (long) of five miles to keep himself fit. (所给词的适当形式填空）

9 . This new bridge, which measures ten kilometers in l________, will come into service next month. (根据首字母单词拼写)

10 . The hotel pool is 15 metres in ______ (long). (所给词的适当形式填空）