Since a participle takes the form: verb + -ing, the only word in this sentence which has such a form is B, 'challenging'. 'Puzzle' is a noun, 'crossword' is an adjective, 'created' is a verb.
Answer D is the best example of imagery through onomatopoeia.In this description, the reader can easily imagine the fire's appearance and sound.
A sample of water is taken and kept in a beaker in a freezer at a constant temperature of 0°C. If the system is at dynamic equilibrium, which of these statements is true?
You can say symmetrical means fold it and it will be the same on both sides and use the word plot