My mother walked into the bedroom q while my sister was sleeping because she was afraid to wake her up．
Some in the medical research helped control the terrible illness． （ achieve ）
My father stopped smoking． （ final ）
Nick gave his mother a scarf on her birthday． That made her very happy． （ forty ）
﹣Let's go swimming in the river this afternoon．
﹣We'd better not． It's ． （ danger）
Great changes have taken place in hometown．（ we ）