单选题— I hear Johnson was badly injured in the accident. —______, let's go and see him.[A] What's more[B] If so[C] Where possible[D] When necessary

单选题Whattimewasit?

单选题She had expected them to be indifferent to ______ grown-up topics ______ taxes and social security.

单选题I ______ a supporter of this basketball club for many years now.[A] will be[B] was[C] was being[D] have been

单选题I was really anxious about you. You ______ home without a word. A.mustn't leave B.shouldn't have left C.couldn't have left D.needn't leave

单选题—Who lives in this room? —______. A．None B．No one C．No D．Nothing

单选题Either you or I ______ wrong on this matter. So we don't have to quarrel with each other. It is useless. A.is B.are C.am D.were

单选题A fireman discovered the __________ of the fire.

单选题Whathasthewomanjustbeenoffered?

单选题We can learn from the text that the writer believes______.

单选题Whereisthemangoingto?Heisgoingto______.

单选题If teamwork is lacking what should good managers do?

单选题{{B}}E{{/B}} American doctors say mothers who smoke cigarettes may slow the growth of their children' s lungs (肺). They said reduced lung growth could cause the children to suffer breathing problems and lung diseases (疾病) later in life. Doctors studied more than 1 100 children between the ages of five and nine. The mothers of some of the children smoked; the other mothers did not. Doctors tested the children once a year for five years to see how fast their lungs were growing. The test measured the amount of air the children could blow out of their lungs in one second. Children should be able to blow out more air each year because their lung-power increases as their lungs develop. But the doctors found that the lungs of the children whose mothers smoked had not developed as fast as they should. Doctors are not sure when the mothers' smoking affected (影响) the children's lungs. They say it could have happened before birth because the mothers smoked during pregnancy (怀孕) or it could have happened later when the children breathed smoke-filled air at home. Doctors also are not sure if reduced lung growth will affect the children' s health when they have grown up. But they do know that children whose mothers smoked developed 20% more colds, flu (流感) and other breathing diseases than other children. So doctors feel there is a greater danger that such children will develop serious lung and breathing diseases later in life. Another recent study found that smokers have a greater chance of developing lung cancer (癌症，肿瘤) if their mothers smoked. That study found that the danger of lung cancer increased only for sons and .not for daughters. And it found that father's smoking did not affect a person's chances of developing lung cancer.

单选题Which of the following in NOT true?

单选题—What about Mr. Wang"s teaching? —_______.