Câu hỏi:

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

Question:They use ________ plastic bottles to keep water.

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

Question:We ___________ a survey to know more about recycling.

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

Question: We can find noise pollution __________ most cities.

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

Question: We will save the environment if we ___________ plastic.

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