In teaching it is highly___to know exactly what one is hopin

In teaching it is highly___to know exactly what one is hopin What exactly is a lie?Is it anything we say which we know is I don't know what exactly it is.这句话对吗?exactly 应放在什么位置? timing is everything,collect exactly 30 coins in one run What exactly is it that you want ,pretty What exactly is that mean? what is the exactly time I don't know why,but it is exactly the truth.It is never too this is exactly what happed in Shanghai 这个话语法怎么解释,exactly是修饰 ( )I know what it is to be in need and what it is to have __ -Do you know what Mr Franklin is -Idon't really know exactly This is one opportunity for you to get to know what it is li