Read the sentences below about the environment. Use the correct form of the word in brackets to complete each sentence.

Here are the solutions to the questions:

8) Rewrite each sentence according to the instructions given in brackets.

• f) When the teacher entered the class, the pupils stood up. (Begin with As soon as)
  • As soon as the teacher entered the class, the pupils stood up.
• g) He is very tired, but he continues working. (Rewrite using although)
  • Although he is very tired, he continues working.
• h) Mary did not come to school. Her sister did not come to school. (Begin with Neither...nor)
  • Neither Mary nor her sister came to school.

9) Read the sentences below about the environment. Use the correct form of the word in brackets to complete each sentence.

• a) We should look up the meaning of words like tree and water in a dictionary.
• b) If you do not understand a word about the environment, check it in the introduction at the beginning of your book.
• c) The names of animals and plants are arranged in alphabetical order in the book.
• d) My little sister is good at spelling words like forest and river.
• e) There is more than one pronunciation of some words we use when talking about the environment.

10) Choose the correct verb and complete each sentence.

• a) Every day, we plant trees to protect the environment.
  • The correct option is a) plant.