Find a mistake in every sentence. Underline and correct it.a. You’ll never guess what happen to me.b. I was at the zoo when I heard people shout and scream.c. Did someone fell in the water?d. The guards catch it quickly.e. You didn’t see that every day, do you?

1 I will have finished my work by 5 o'clock.
2 He will have finished his job by 5 o'clock.
3 Will he have finished his work by 5 o'clock?
4 We will have finished his work by 3 o'clock.

1 We will have been singing all day long until you call us to have lunch.
2 They will have been having fun since 6 o'clock when we came.
3 You will have been waiting for more than 2 hours when he her plane finally arrives.
4 They will have been talking for over an hour by the time Thomas arrives.
5 James will have been teaching at the University for more than a year by the time he leaves for Asia.