use the word /plarses provied to write suitable sentences.

1 last week /they/visit/halongbay /which/one/world horitages/viet nam.

2 way /mountain/long/that/take/two hours/walk.

3 we/worried/that/people/not/stop/throw/trash/along/street.

4 if/house/near/office/i/walk/work/everyday.

5 buther/say/he/going/meet/penal/following day.