Portual is to the west of Spain葡萄牙和西班牙是接壤的呀,为什么用介词to,而不是介词on呢?希望会的赶快给个答案,

Portual is to the west of Spain葡萄牙和西班牙是接壤的呀,为什么用介词to,而不是介词on呢?希望会的赶快给个答案, the only thing we have to fear is fear itself. The only thing we have to fear is fear itself. the only thing we have to fear is fear itself. the only thing we have to fear is fear itsdlf. Best of the best is what we strive to be. The only things we have to fear is fear itself __it is sunny __rainy,we will go to the mountain. it is cool 还有shall we go to the zoo is,the,way,walk,school,to,we,this,组成一句话 listen to the sea is crying but we are not the train is gong to leave.we must say good listen to the sea is crying but we are not the（ ）is that we have a lot( )to ask. Grandma is ill .We must take her to the ___ She is going to the park tomorrow.So __ we. Grandma is ill.We must take her to the h( ). The next important question we have to decide is when do we have to submit the proposal.为什么这么改do we have to-----we have to