The human ____ system is a series of organs responsible for taking in oxygen and expelling carbon dioxide.

Peter and started playing the piano when he was 6.

=> Peter has……………………………………………………………………………………………

If people breathe in deeply, their ____ can expand to twice their normal size.

Mother: “Haven’t you tidied up your room yet?”      - Son: “____”

As soon as he ______, I _____ you a phone call.

Find a mistake in the four underlined parts A,B,C or D of each sentence.

 The workshop is so interesting that we aren’t wanting to leave now.

                              A            B                              C                 D

Doing crossword puzzles surely has beneficial effects to our brain’s memory.

                        A                        B                                   C                               D

Write the sentences beginning with the words / phrases given without changing the meaning of the given sentences.

40, That film made me bored (boring).

Everyone in my family has to do the share of ______ because my parents go out to work.

They have never seen that film before.

No one has seen Peter since the day of the party.

=> Peter ……………………………………………………………………………………………