Listen!There_____ the bell.A.rings B.ring C.is ringing D.is ring

Listen!There_____ the bell.A.rings B.ring C.is ringing D.is ring Listen listen Listen Listen after doing s.th还是after do s.th?在书上看到两句话：1、After listening to it2、After they listen to it为什么一个是 doing s.th 一个是do s.th? 英语单选题many students stopped to listen to the music as it --- so charmingly on the piano th There_____(be)many people in the room. There_____(be) no rain since last mouth ()()()th()() ()()th()() ()()th()() ()()()th()() ()()()th()() ()()th()() 填写字母,成为单词. There_____(be)a boy and some girls over there There_____(be) some drink and food on the table. Is there_____ milk in the fridge?Yes,there is _____. There_____(be)hundreds of different kinds of dinosaurs. there_____(be)more people if you guys come there_____（be）no one here a moment ago There_____(be not)any apples in the box. 用th组英语单词( )( )( )th( )( )( )( )th( )( ）( )( )th( )( )( )( )th( ）