阅读下面短文，然后根据括号内所给汉语意思写出单词的正确形式（每空一词）。
Soap is widely used in our lives around the
world. Once soap was a dangerous-to-make hair {#blank#}1{#/blank#}(产品). But it is something that it would be difficult to live without
today.
Soap is everywhere. We use it every day and {#blank#}2{#/blank#} (认为)it as
something important in our lives.
It also has an amazing{#blank#}3{#/blank#} (历史), in
Babylon around 2800 B. C. the {#blank#}4{#/blank#} (最早)known soap was
made and used. Ancient Egyptians also made soap. At one time, soap-making was
not {#blank#}5{#/blank#} (安全).
That's
because lye(碱液){#blank#}6{#/blank#}(导致)chemical
burns or even made people blind in the making process. Other dangerous
materials were also {#blank#}7{#/blank#} (混合)with animal fats
and oils. Later. soap became {#blank#}8{#/blank#} (可购得的)in stores and
people gradually stopped making it in their homes.
Originally (最初),
soap was not mainly used for {#blank#}9{#/blank#} (清洁).Instead, it was
used as gel(凝胶) for making hair stay in place or smell good.
The Arabs first made the soap that we know today. They created colored, liquid,
and hard soaps. They even had soaps which were used for shaving(刮胡子).
Soap became people's{#blank#}10{#/blank#} (最喜欢的)in the
late 1800s. Advertising in Europe and the US helped people understand the
connection between cleanliness and good health. Now. Soap is something we
wouldn't want to live without.
