$\text{Answers:}$
$\text{1. We'll travel to Nha Trang next week.}$
$\text{2. Nga And Lan will vist their grandparents}$
$\text{3. They will go to the movies tonight.}$
$\text{4. Hoa will have lots of friends soon.}$
$\text{5. I will come after lunch.}$
$\text{6. He will see you tomorrow afternoon.}$
$\text{7. My father will be free at 7.30 this evening.}$
$\text{8. The students will go camping next Sunday.}$