Answer: B) Upon returning from work.
Explanation for this question is being written.
Answer: C) Apenas/ acabar de.
Answer: C) While
Answer: B) The moment.
Answer: D) Early
Answer: A) When
Answer: A) Time
Answer: A) Had already started.
Answer: B) Adverb of time.
Answer: B) At last.
Answer: A) Time-order words.
Answer: A) Had been finishing.
Answer: D) None in this sentence.
Answer: B) Time
Answer: B) False
Answer: A) She will cook some soup when she has done some shopping.
Answer: D) After not eating.
Answer: D) When
Answer: C) Yesterday
Answer: A) Correct
Answer: A) First, I wake up. Then, I eat breakfast.
Answer: D) The following day.
Answer: C) Adverb clause.
Answer: D) When it rains.
Answer: B) Since
Answer: B) At
Answer: C) They have been waiting for two hours for the bus.
Answer: B) Often
Answer: C) Four weeks ago.
Answer: C) Quickly and tomorrow.
Answer: C) Since
Answer: A) Since the chips were on sale,.
Answer: A) Since you are here.
Answer: D) Whenever
Answer: A) While it rained.
Answer: A) In
Answer: D) On your way out, once you're dismissed.
Answer: A) After I finish my homework, while I am eating dinner, I will watch TV.
Answer: B) As the capsule opened.
Answer: A) In the evening.
Answer: C) When
Answer: A) I was smiling when I saw Mom.
Answer: B) Are
Answer: C) In the long run.
Answer: B) September
Answer: A) At
Answer: A) While
Answer: A) Every morning.
Answer: B) Getting
Answer: B) When I arrive at the airport.
Answer: A) Subordinate
Answer: C) After he arrives.
Answer: A) After
Answer: B) Once
Answer: D) When I started secondary school.
Answer: D) In advance.
Answer: B) When
Answer: C) 'while I was in class' is an adverb clause.