XI.
1,HCM city is the biggest city in VN with the population of over 8 million.
2,Angel Falls is the highest fall in the world with over 1,000 feet higher
3,Lake Superior in North America is the largest freshwater lake in the world
4,You must bring the compass or we will get lost in the forest.
5,You should take a waterproof coat during your trip to Fansipan Mountain because it is rainy there.
6,You should arrived on time at school.
7,You shouldn't walk alone after 10 pm in that park.
8,You must taking a boat trip around the islands in Ha Long Bay, it is the most important thing of the trip.
9,Antarctica is the coldest place in the world.
10,We shouldn't write on the walls or tables in our classroom.