72. Her husband was sound asleep.
她丈夫睡得很熟。
73. I can assure you that your son will be happy here.
我可以向你保證,你兒子在這里會很快樂的。
74. We book early to assure ourselves of seats.
我們及早訂票以確保有座。
75. I met him at the bus stop.
我在公共汽車站遇到他的。
76. Please don't laugh at him.
請不要嘲笑他。
77. The airplane flies at 900 kilometers an hour.
飛機以每小時900公里的速度飛行。
78. It took them several days to cross the Atlantic Ocean.
他們花了好幾天的時間穿越大西洋。
79. The enemy attacked us at night.
敵人在夜里向我們進攻。