Julius Infinitive or Gerund

I remember ______ him last year.

• to meet

• meeting

I must remember ______ him at the station tomorrow.

• to meet

• meeting

Don’t forget _____ the door before going to bed.

• to lock

• locking

He forgot _____ his passport. He left it on the table.

• to bring

• bringing

Try to forget it; it isn’t worth_______ about.

• to worry

• worrying

I rang the doorbell, then I tried _____ on the door, but there was still no answer.

• to knock

• knocking

We tried _____ the fire out but we were unsuccessful.

• to put

• putting

Please, leave me alone. I’m trying ______.

• to concentrate

• concentrating

Julia needed to borrow some money. She tried ______ her brother, but he was short of money, too.

• to ask

• asking

Your hair needs _______.

• to cut

• cutting