Rewrite the sentence

21. Why don't we take a tour around this city?

-> I suggest _____________.

22. How about getting a taxi to town.

-> I think _______________________.

23. Let's invite Tom to join our trip.

-> I suggest _________________.

24. Shannon hasn't seen the water buffalo and rice paddies before.

-> This is the first time __________________.

25. Tim has never traveled to Vietnam before.

-> This is the first time ___________________.