单选题A 50-ft.wave travels at speeds ______ 20 m.p.h., and anyone who's too slow at the approach risks being smashed.
单选题A tourist is prevented from entering a country if he does not have ______ passport.
单选题Which of the following can be inferred from the last paragraph?
单选题The relationship between the first two paragraphs can be described as
单选题The house is nearly finished but the windows haven' t been ______ yet.
单选题In a clearing at the centre of the thicket stood the Tonnerre familys ____. A. home B. resident C. shack D. dwell
单选题 中国人春节张贴门神(door gods)像是一项重要的风俗。门神像就是张贴在屋内屋外门上的神灵的画像。人们希望它们能驱鬼，保护家人，带来平安和吉祥。胖娃娃的图画通常被认为是屋内的门神，意味着好运、长寿和人丁兴旺。大门的门神有几种不同的形式，最早的门神是神荼(Shen Shu)和郁垒。如今，最常见的门神是元朝时期流行起来的秦叔宝和尉迟恭(Yuchi Gong)。秦叔宝皮肤煞白，常常佩剑；而尉迟恭皮肤黝黑，常常佩棍。他们总是成对地出现。
单选题The last half of the nineteenth century ______ the steady improvement in the means of travel.
单选题It is very plain that such a life as this is far more______to health than that of the man who can afford little leisure for necessary rest in the course of the day.
单选题The first paragraph tells us the author ______. A. was born to a naturalist's family B. didn't like his brothers and sisters C. lost his hearing when he was a child D. was interested in flowers and insects in his childhood
单选题When I found the light switch, the unshaded bulb only illuminated two small cats, sitting on the table ______ round the inside of the empty ham tin. A. swallowing B. gorging C. licking D. digesting
单选题A great cheer went up from the crowd as they caught_______ of the hero.
单选题Why are some of us good at math, or writing, while others______at art or basketball?
单选题My children are looking forward to ______ a trip to Paris.
单选题The desk over there ______hard wood.
单选题To qualify for such a position, the native would first have to receive specialized training, and this is ______.
单选题Insomnia, or “poor sleep”, can have bad effects on a persons health and general well-being. It can___请作答此空__21on both our physical and mental health and can lead to other health_____22. Insomnia
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单选题The conference ______ a full week by the time it ends.
单选题Economic theory would predict that a fall in the price of a commodity would lead to an increase in ______.