3. Complete the sentences of the past simple of the verbs in negative form.

a. I saw Barbara, but I didn’tsee Mariana.

b. They worked on Monday, but they ______________ on Tuesday.

c. We went to the post office, but we _________________ to the bank.

d. She had a pen, but she _______________________any paper.

e. Brian did some work in the yard, but he________​