1) hear.  

2) eat  

3) was

4) had

5) going  

6) liked

7) spend

8) bring

9) saw  

10) were

11) went

12) became

13) write

14) be

15) swept  

16) writing  

17) came

18) meet  

19) got  

20) came  

21) sing  

22) spending  

23) have.