Not all animals move as efficiently as sharks and dolphins. Perhaps the greatest loser in locomotion efficiency is the slug. The slug, which looks like a snail without a shell, lays down a slimy trail over which it crawls. It uses so much energy pr...
2.When the nurse talked to Mum, she thought Mum was a___. A.nurse B.visitor C.patient D.cleaner 3.After reading the story what can we infer about the hospital? A.It is a children's hospital. B.It has strict rules about visiting hours. C.The nurses ...
A: Yes, but she’s veryheadstrong. She has to be the boss. Two weeks ago, you wanted to meet us, but sheput her foot downand made you go out with her, instead. She’s veryh...
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