照样子,写词语。
黑黝黝(ABB式) ____ ____
小心翼翼(ABCC式) ____ ____
It's nice of you ________ me.
观察下列各数:1,1,57,715,931,…按你发现的规律计算这列数的第7个数为( )
He felt embarrassed when he became the centre of attention.