As an (2) _______of how this works, scientists have created underwater robots that will be used to repair coral reefs that have been damaged. 

Mark the letter A, B, C or D to indicate the underlined part that needs correction in each of the following questions.

Although her friends tried to persuade her to apply for the job at a local factory, but Christine refused to make an application.

Choose the best answer

Curiosity and lack of fear of ____ is what distinguishes bright people.

Put the verbs in brackets into the correct forms.

Change the sentence into passive causative and remember to omit by + O 

Give the correct form of the word to complete the following sentences.

Rewrite the sentences without changing the meaning.

Rewrite the sentences without changing the meaning