Câu hỏi:

Choose the letter A, B, C or D to complete the sentences

Question: Let’s reduce the __________ of deforestation.

Choose the letter A, B, C or D to complete the sentences

Question:If you turn _________ the lights when you don’t use it, you will save electricity.

Choose the letter A, B, C or D to complete the sentences

Question: If we continue to deforest, our earth ___________ polluted.

Choose the letter A, B, C or D to complete the sentences

Question:Do you know what ___________ water pollution?

Choose the letter A, B, C or D to complete the sentences

Question:Why don’t we __________ old school objects for candies?

Choose the letter A, B, C or D to complete the sentences

Question:They are using leaves __________ food.

Choose the letter A, B, C or D to complete the sentences

Question:They use ________ plastic bottles to keep water.