问题描述：
Let’s _________ pandas first.A.not look at B.not to look at C.not see D.not to see
________elephant is heavier than_________koala.
A.A,a B.An,an C.An,a D.A,an
.Koalas sleep ________.They only come out at night.
A.all day B.allthe day C.day all D.the all day
________elephant is heavier than_________koala.
A.A,a B.An,an C.An,a D.A,an
.Koalas sleep ________.They only come out at night.
A.all day B.allthe day C.day all D.the all day
问题解答：
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