My mother often spends 2 hours ______ housework every day.
-How much difficulty did Lucy have_______ this problem? -_______. She's a good problem solver.
My best friend sent me a message as soon as she_______, in Zhangjiagang.
-The deadly disease destroyed her body but not her_______. - She was really strong-minded.
I don't think the girl has a real gift_______ dancing, but she practises so hard and wants to be a dancer when she grows up. I admire her_______ her courage.
-Do you know_______ second-hand smoke? -To protect our health and memory.