Supply the correct forms for the verbs in brackets

Exercise : Supply the correct forms for the verbs in brackets.
 

1.        After John (see) _____________________ the film on TV, he began to study.

2.        A: (you, go) ________________________ to this city before?

       B: No. it’s my first time.

3.        I’m sorry, sir, but I (not, understand) __________________ what you mean.

4.        Water (consist)________ of hydrogen and oxygen.

5.        Don’t give the chocolate to Helen. She (hate) ________ it.