Answer: A) People communicate.
Explanation for this question is being written.
Answer: D) She left the room singing happily.
Answer: D) She enjoys playing the piano.
Answer: A) Reading
Answer: B) Knocking
Answer: C) Hitting
Answer: C) Buying
Answer: C) Folding
Answer: D) Being
Answer: A) Jogging
Answer: B) Dancing; gerund.
Answer: A) Playing
Answer: A) Being
Answer: B) Drawing
Answer: A) Defrosting
Answer: A) Having hacked.
Answer: A) Going
Answer: C) Meeting
Answer: C) Making
Answer: D) Becoming
Answer: C) Practising
Answer: C) Avoid talking.
Answer: C) She loves drawing.
Answer: C) Eating
Answer: B) Off
Answer: B) Revising
Answer: B) Playing
Answer: B) Writing
Answer: B) M ating.
Answer: A) Funding for diversified treatment methods.
Answer: B) Offering
Answer: B) Learning
Answer: C) Hoping
Answer: B) Her marrying.
Answer: A) Working
Answer: B) Watching
Answer: B) Sitting
Answer: B) Being able to.
Answer: B) Diving
Answer: B) Going
Answer: C) I am getting + adjective/noun.
Answer: C) C
Answer: C) Working
Answer: A) Bird watching.
Answer: B) Doing
Answer: B) Crying
Answer: D) Accepting
Answer: C) Doing
Answer: B) Poisoning
Answer: B) The prompt payment of bills.
Answer: C) Camping
Answer: C) Taking
Answer: C) Deny
Answer: C) This tool is used for cutting wood.
Answer: C) Contacting
Answer: B) Walking
Answer: E) Adverbal modifier.
Answer: B) Drinking