II. Give the correct form of the verbs to complete the sentences.
21. We should ( bring) _____ a book to read.
22. Last week, my teacher (take) _________us to the Phong Nha cave in Quang Binh province.
23. What can we (do) ___________in Ha Long bay?
24. What are you doing now, Peter? I __________( travel) around Vietnam now.
25. How often do you ( go) __________abroad for business?
26. If you ( love) _________beaches, you should ( go)___________to Phu Quoc island.
27. He ( need) _______to bring some food to eat in case he is hungry.
28. My brother likes ( go) ____________for a picnic at the weekend.
29. I would like (invite) _______him to go to the island with my family next summer.
30. In the past, people ( not travel)______________ much.
21. bring
22. took
23. do
24. am travelling
25. go
26. love... go
27. needs
28. going
29. to invite
30. didn't travel