根据括号内所给词选择适当形式填空【解析】
问题描述:
根据括号内所给词选择适当形式填空【解析】
Her parents have gone Beijing on____(busy)
There have been many new____(develop)in electronics
答
1.business因为on business固定搭配意为出差
2.developments表示发展的名词