1. the/is/the world./Russia/biggest/country/in

⇒ Russia is the biggest country in the world.

2. the Imperial City/to Hue./visit/when/you/You/travel/must

⇒ When you travel to hue, you must visit the imperial city.

3. in/the/is/longest river/Mekong River/the Southeast Asia.

⇒ Mekong river is the longest river in Southeast Asia.

4. Asia./in/is/The Gobi Desert/largest/the/desert

⇒ The Gobi Desert is the largest desert in Asia.

5. Hoan Kiem Lake/because/forget/to visit/it’s/Don’t/very/beautiful.

⇒ Don't forget to visit Hoan Kiem lake because it's very beautiful.

6. in/biggest/is/Son Doong Cave/the/cave/Vietnam.

⇒ Son Doong Cave is the biggest cave in Vietnam.

7. highest/in/Vietnam./mountain/is/Phanxipang Mountain/the

⇒ Phanxipang Moutain is the highest moutain in Vietnam.

8. I/think/Sapa/is/summer./more/the/beautiful/in

⇒ I think the summer in Sapa is more beautiful.

9. Ly Son Island./Phu Quoc Island/than/famous/is/more

⇒ Phu Quoc Island is more famous than Ly Son island.

10. tourist/has/attractions/a lot of/Viet Nam

⇒ Viet Nam has been a lot of attractions for tourist.

1, Russia is the biggest country in the world

2, You must visit the Imperial City when you travel Hue

3, Me Kong River is the longest river in the Southeast Asia

4, The Gobi desert is the largest desert in Asia

5, Don't forget to visit Hoan Kiem lake because it's very beautiful

6, Son Doong Cave is the biggest cave in Vietnam

7, Phanxipang Moutain is the highest moutain in Vietnam

8, I think the summer in Sapa is more beautiful

9, Phu Quoc Island is more famous than Ly Son island

10, Viet Nam has been a lot of attractions for tourist