请根据句意从方框中选择合适的单词，并用其适当形式填空，使句子通顺。

(1) Although the film____  was not interesting, Ann played the lead role very well.

(2)It was ____ for my father to talk so much at table that day. He is always quiet.
(3)Visitors can watch all kinds of birds ____  at Beijing Wildlife Park.
(4)Mr Black was a very good swimmer in his ____ .
(5)The other team played even ____ in the second half of the basketball final.

小明、小红和小丽比赛跳远，看图回答。（____ ）得了第一名。

​ 

弹簧测力计是测量____的工具，其原理是：弹簧的受到的拉力越大，弹簧的伸长越____。

如图所示，足够长的光滑平行金属导轨MN、PQ竖直放置，一个磁感应强度B=0.50T的匀强磁场垂直穿过导轨平面，导轨的上端M与P间连接阻值为R=0.30Ω的电阻，导轨宽度L=0.40m．电阻为r=0.20Ω的金属棒ab紧贴在导轨上，导轨电阻不计，现使金属棒ab由静止开始下滑0.7m 后以5m/s的速度匀速运动．（g=10m/s²）

求：