4.Mr Smith is strict --- his son.And he is also strict --- h

4.Mr Smith is strict ___ his son.And he is also strict ___ his work.A.in,with B.in,in C.with,in D.with,with11.Wang Bing noticed his son ___ to music just now.A.listens B.listening C.to listen D.listened20.Strstford is a famous town and well worth ___.A.visit B.visits C.visiting D.visited24.--- Who ___ your grandfather at the train station?--- My father.A.did meet B.does meet C.met D.meets29.There are many things for you ___ in big cities.A.do B.did C.doing D.to do30.___ is not safe for children ___ home late.A.It,to return B.That,to return C.It,return to D.That,return to