44.
(A)for
(B)on
(C)about
(D)at

They can swim at a speed of more than 15 miles per hour.

他們可以超過每小時 15 英里的速度在游。

• Penguins are birds, but they cannot fly. However, they swim very fast. They can swim “at “a speed of more than 15 miles per hour. While swimming, penguins use their feet “as “rudders(方向舵） to help them turn. Penguins feed on animals in the sea, such as fish, squid (烏賊）, and (蝦）shrimp-like creatures. The penguins' spiky(尖銳的） tongues（舌頭） help them hold on to the slippery（滑動的） fish. All penguins have very strong beaks（喙）, “which “they also use to defend（保護） themselves against enemies. There are 17 different kinds of penguins, but not all live in the ice and snow. For example, the fairy （相當多的）penguin lives along the shores（岸）and islands of southern Australia and New Zealand.n
• 企鵝是鳥類，但他們不會飛。然而，他們游得非常快。他們可以以超過每小時15英里的速度游泳，且企鵝能夠使用他們的腳當作方向舵來幫助他們轉向。企鵝們以在海上的動物像是魚，烏賊，像蝦子的生物維生。企鵝尖銳的舌頭幫助他們抓住滑動的魚。所有企鵝都有非常強壯的嘴（喙），那使他們使用來保護他們自己來對抗敵人。有17種不同種類的企鵝，但並非所有都生活在冰上或雪地上。例如，有大部分的企鵝沿著南澳及紐西蘭的海岸生活著。
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While swimming, penguins use their feet _____2_____ rudders to help them turn.