can we leave the park right now?

问题描述:

can we leave the park right now?
Can we leave the park right now?
Sorry,we'll have to stay here____it is still too foggy.
答案是since 为什么不选择if.

since有两个意思,一个是“直到……”一般出现在完成时态句子,一个是表原因“由于”;since在这里意为“由于”Sorry, we'll have to stay here since it is still too foggy.对不起,由于现在还是雾蒙蒙的,我们将不得...