ktra tieesng anh

______ is important because plants and animals depend on each other to survive.

• biodiversity

• habitat

• ecosystem

• wildlife

A new series of educational programmes shows the importance of ______ to humans.

Their work involves protecting and creating natural ______ for plants and animals.

Countries need to work together to deal with global issues such as deforestation and ______.

Pollution can have serious effects on the balance of ______

Minh’s teacher asked him if he was / is ready to present the following day.

Nam’s father suggested / denied that Nam should focus on one aspect of the problem.

Tuan said he would complete his project the following week / next week.

Mai asked / said her teacher where she could get the information form.

Phong said he handed / had handed in his project the previous day.