Indefinite pronouns

Divide the sentences into three groups.

Choose the correct answer to complete the sentence: ... happens for a reason.

Choose the correct answer to complete the sentence: ... can understand this text: it is so easy.

Choose the correct answer to complete the sentence: Does ... know what’s happening tonight?

Choose the correct answer to complete the sentence: ... baker presented a beautiful cake to the king.

Choose the correct answer to complete the sentence: Is there ... at home?

Choose the correct answer to complete the sentence: ... can understand this text: it is so difficult.

Choose the correct answer to complete the sentence: ... must go there at once.

Choose the correct answer to complete the sentence: ... is making my computer act up.

Choose the correct answer to complete the sentence: I don’t know ... of the answers.

Choose the correct answer to complete the sentence: Is there ... in that box?