1. I’m sure I locked the door. I clearly remember _____ it. A. locking B. to lock C. to have locked D. to be locked 2. She tried to be serious, but she couldn’t help ______. A. laughing B. to laugh C. that she laughed D. laugh 3. I like _____ the kitchen as often as possible. A. not cleaned B. clean C. to clean D. that I clean 4. He tried to avoid ______ my question. A. answering B. to answer C. answer D. how to answer 5. Could you please stop _______ so much noise? A. to make B. make C. making D. to have make 6. Have you finished ______ your hair yet? A. wash B. washed C. washing D. to wash 7. Hello! Fancy _____ you here! What a surprise! A. to see B. seeing C. seen D. see