介词填空,每个词或词组只能用一次 （in,on,at,under,behind,in front of,in the front of,out of,after
before,with,of,by,over,about,near,between,for,without,from,to,off,beside)
1 He does well（ ）writing English 2 Look( )the old woman( )England
3 I am old.I must sit( )the bus.4 There are some tigers jumping( )the chairs( )the trees.
5 He is sitting( )his father( )talking.
6 You can ask your teacher( )help( )class
7 Brush your teeh( )you go to bed