问题描述：
1.I am very busy .Perhaps I will be f____tomorrow.2.Linda is as ____(outgoing)as Mary.
3.The computer is very ___(expensive),but it's______(useful)of all.
4.When summer comes,the days get____(long)
3.The computer is very ___(expensive),but it's______(useful)of all.
4.When summer comes,the days get____(long)
问题解答：
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