The word when is an adverb
Grab the sticks and start a pile.
Another phrase for times up is "let's hurry it up" or a more formal way of saying time's up is " Let's please make the activity go faster".
Answer: One of them must present his/her project report on Thursday
Explanation:
<span> means "one, only, single," as in monochromatic, having only one color.</span>
