. Have you ever been visiting the Center Sector of the Imperial Citadel of Thang Long, one  of the eight World Heritage Sites in Viet Nam?

Climate change and pollution can contribute to _____________________ of biodiversity in the area. (LOSE)

Although we faced many difficulties, we successfully ran an anti-bullying campaign. (SPITE)

You will have to play better than that if you want to make an ________. A. impress B. impressive C. impressed D. impression

It’s ________ she could finish her project earlier. A. by working in groups with her friends that B. by working in groups with her friends who C. working in groups with her friends that D. her friends were working in groups that

September 2nd is a ________ day of Viet Nam because it is Vietnamese Independence Day. A. historic B. historical C. history D. historian

Scientists predict that if we don’t take immediate action to combat global ________, the impacts will be even more severe in the future. A. heating B. warming C. freezing D. melting

________ right and doing exercises or physical activities are essential to have a healthy life. A. To eat B. Eating C. Eat D. Eaten

Burning to make electricity, coal releases a large amount of carbon dioxide into the  atmosphere, which causes air pollution.

The ___________________ of certain plant species can negatively affect the balance of the ecosystem. (DISAPPEAR)

I haven't seen my brother since he ________ for Ho Chi Minh City 2 years ago. A. left B. leaves C. would leave D. had left

Conservation organisations work tirelessly to protect _____________________ species. (DANGER

In addition better living standards, people enjoy more nutritious diets and cleaner drinking water.