68. She has to look after her child at home.

　　　 She has to stay at home to (　　　　 )(　　　　 ) of her child.

67. Be careful!The milk is not cool enough to drink.

　　　 Be careful!The milk is (　　　　 ) hot (　　　　 ) drink.

66. Tell me the way to the station.

　　　 (　　　　 ) me the way to the station.

　　 完成句子，使改写后的句子完整，并与原句意思相符，每空格只准填一个单词.

65. We will never forget Dr Bethune.

　　　 We will always (　　　　 ) Dr Bethune.

49. (　　　　 ) four is eight.

48. Chemistry is one of the most important (　　　　 ).

47. His (　　　　 ) stopped beating.He was dead.

46. Don't eat too many sweets. They are (　　　　 ) for your teeth.

45. We can see many stars in the (　　　　 ) at night.