This is _______ armchair. I’m writing with________armchair.

trees grow tall by pruning. _____, a child needs education to become a personuseful to society.

Oh! I failed again.—Don’t lose heart. One more effort (努力), _________ you will succeed.

Tu Youyou’s years’ of hard work ________ when she finally won the Nobel Prize.

Mr.Smith, ofthe speed,started toread a novel.