题目内容
对有抗渗要求的混凝土，其洒水养护的时间不少于()d。
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It must have been after two o'clock in the morning when the last guests【B1】their leave, and although we had enjoyed their【B2】, my wife and I were quite thankful to shut the door【B3】them. We【B4】all the dirty dishes and glasses as they were, and after opening a few windows to let some fresh air in and the smell of stale【B5】out, we climbed into bed and fell asleep. I could not have been【B6】for more than half an hour when I woke with a【B7】smell of smoke in my nose. Still half asleep, I【B8】into the sitting room, and, there through【B9】clouds of smoke, I saw that one of the curtains was【B10】fire. I should have closed the windows then without delay, but【B11】I tried to beat out the flames with a folded newspaper.【B12】this failed I hastened into the kitchen to【B13】a bucket and fill it with water. At the same time I shouted to Barbara, who【B14】dialed 999 to summon the fire brigade【B15】coming to my aid. We had to work at top speed carrying buckets of water from the kitchen to prevent the flames,【B16】by the breeze from the windows, from spreading. We were unable to【B17】out the fire but we managed to keep it【B18】in check until the arrival of the firemen. Fortunately, they arrived promptly and they had little difficulty【B19】putting out the flames. For most of the【B20】of the day we worked hard.
【B1】
A．This evening.B．Tonight.C．Sometime next week.D．Tomorrow.
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