用所给动词的适当形式填空1.I ____ never ____ there before.(be)2.---____To

用所给动词的适当形式填空
1.I ____ never ____ there before.(be)
2.---____Tom ____ the book?(return)
---Yes,he has.
---When ____ he ____ it?(return)
---Half an hour ago.
3.---Have you ____ dumplings?
---Yes,I _____.(have)
4._____ the young woman ever ____ to England?(travel)
5.---Have you ____ in the ____ pool yet?(swim)
---No,not yet.