Choose the best answer

1. Razaily Mary am , was staying (in /on/with/ to )............ Lan last week 
2. Your mother likes watching documentaries, ( doesn't / does / isn't / is) .............she ? 
3. Mai said she would go to Hue ( the day before / the last day / the day after ) ..................
4. We will have no fresh water to use ( if / although / however / therefore ) ........... we pollute the water
5. In winter ,many Swedes travel to a country ( where /which /that /in that )........there's a lot of sunshine 
6. - Nam : " Don't forget to come to my party tomorrow " : - Lan : ( I don't /I won't / I can't / I haven't ) ..........