读一读，选词填空完成对话
Mr.
Lin: Welcome to my insect corner. Let me show you around. Look, here are some butterflies.
Do you know how they grow? First, they {#blank#}1{#/blank#} (are/ were) small eggs.
Then they, became green caterpillars. The caterpillars {#blank#}2{#/blank#} (ate/ eat)
leaves. After two weeks, they became (become过去式) brown cocoons.
Now they {#blank#}3{#/blank#} (are/ were) colourful butterflies.
Jane:
Amazing (令人惊奇的)! Oh, I {#blank#}4{#/blank#} (seeing/ see)
some ladybirds over there.
Mr
lin: Yes, I {#blank#}5{#/blank#} (have/ having) five ladybirds. This one is my favourite.
It has seven spots (斑点)! It {#blank#}6{#/blank#} (was/ were)
a birthday present from my friend.
Jane:
It's beautiful!
