阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式。
Bao Bao, {#blank#}1{#/blank#} (bear)at the National Zoo in Washington,
started settling into her new home Thursday in southwest China. Under a(n) {#blank#}2{#/blank#} (agree) between China and the US, such baby
pandas must be returned to China before they are 4 years old, the earliest age
when they might begin to produce young.
The 3-year-old landed in
Chengdu in Sichuan Province on Wednesday after a 16-hour flight, during which
she {#blank#}3{#/blank#} (look) after by a professional panda keeper
Marty Dearie from the National Zoo.
Bao Bao, whose name {#blank#}4{#/blank#} (mean) "treasure", will first go
through a month-long quarantine (隔离期) at the Dujiangyan base, {#blank#}5{#/blank#} keepers will monitor her diet, activities and
health during that time.
A 100-square meter area of land
has been prepared {#blank#}6{#/blank#} her at the base, including both indoor {#blank#}7{#/blank#} outdoor play areas, equipped with rubber balls
and a tire swing for entertainment and fresh bamboo and apples for eating.
Keepers will work hard {#blank#}8{#/blank#} (help) BaoBao get used to local bamboo and
other Chinese foods.
Having been considered as one
of the world's most endangered {#blank#}9{#/blank#} (animal), giant pandas live {#blank#}10{#/blank#} (main)in the mountains of Sichuan, with some
also found in neighboring Gansu and Shaanxi Province.