The bus is leaving soon为什么要用is leaving?

The bus is leaving soon为什么要用is leaving? Hurry up,Tom.The bus is leaving.----Wait a moment,please.Let me see if there 's __left.A anything else B something important 选哪，为什么。 英语改错 Hello,everyone.The bus is leaving in a few minute. 初中英语(翻译一句话)The bus that had this great sale is leaving in 20 minutes. The bus is coming.let's( ). The leaf is leaving .Is it that the wind's seek or the tree's unteta _____!The bus is leaving.Oh,we’re late.A.Hurry up B.Don’t worry C.Be careful The fox is leaving sadly. 几道英语单选,1) Look ,here___ the bus .Let's get it on.A.come B.comes C,are coming D .came2) The doctor ____ is leaving for Africa next mooth.A,the nurse is talking to him B .whom the nurse is talking C.the nurse is talking to D.who the nurse i one bus drive is the father of the other bus daier's son. 填空：The bus is coming.Let's get______ There is ( ) s in the word bus.括号里填啥,为什么 Here is the_____.Let's take the No.8 bus What is the bus station?It's over there.改错 He wants to know how far the bus s( ) is. there is a bus s------- near the park Ann’s mother is sitting on the bus. The bus stop is ( ).