Group up the sentences (1-8) according to the columns.

A Participle:6 Mr Teen spoke to us in a threatening and loud tone.

B Gerund:2 Every theatrical production consists of a number of players acting imaginary characters.

3 His acting of the part of Hamlet was most convincing.

7 When tired of working, he only leaned back in his chair and sat immobile for a while.

C Noun:1 We go to the play for the acting.

4 The extension of education partly depends on the training of teachers.

5 Various germs of poison would be killed by the boiling.

8 I don't like your boasting.