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)The_英语解答

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

人气：421 ℃　时间：2020-01-19 01:15:23

解答

1.business因为on business固定搭配意为出差
2.developments表示发展的名词