6: It took them 5 days to complete their project
=> They soent_________________________________
7: Learning English is interesting
=> I am________________________________________
8: Minh spent 2 days reading these books
=> It___________________________________________
9: Finishing the project on time is difficult
=> It is difficult_________________________________
10: This is the first time Lan and I have attended such a interesting party
=> Lan and I____________________________________
END, thank you
6: It took them 5 days to complete their project
=> They spent 5 days completing their project
7: Learning English is interesting
=> I am interested in learning English
8: Minh spent 2 days reading these books
=> It took Minh 2 days to read these books
9: Finishing the project on time is difficult
=> It is difficult to finish the project on time
10: This is the first time Lan and I have attended such a interesting party
=> Lan and I haven’t attended such a interesting party before
6.They spend 5 days completing their project
7.I am interested in learning English
8.It took Minh 2 days to read these books
9. It is difficult to finish the project
10. Lan and I have never attended such a interesting party before
End, my pleasure!