Since the baby milk powder was found to be polluted, there has been universal do
题型：不详难度：来源：
Since the baby milk powder was found to be polluted, there has been universal doubt _____ other food products are safe _____.| A．that; to eat | B．whether; to be eaten | | C．whether; to eat | D．that; to be eaten |
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答案
| C |
解析
试题分析：本题中的名词doubt后面是一个同位语从句，因为前面的doubt用语肯定句中，所以使用whether引导该同位语从句，表示不确定的事情。第二空使用不定式to eat对句子的主语other food进行补充说明。因为safe是对主语的性质特征进行的说明，故使用不定式的主动语态。如：The problem is easy to solve。这个问题很容易解决。句义：既然婴儿奶粉被发现已经被污染了，很多人都怀疑其他的食物是否可以安全食用。故C正确。 |
举一反三
In the darkness, she felt ________, but when she turned around, nobody was there.| A．to follow | B．following | C．to be followed | D．being followed |
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The game was so exciting to play that the boy kept his eyes and attention ________ on it, ruining both a lot. | A．fixing | B．fixed | C．to fix | D．fix |
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--What do you think of cloning?
--No doubt it’s a great invention. But ________, it may have some side effects.| A．if not properly handling | B．if properly not handled | | C．if not properly handled | D．if properly not handling |
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The vocabulary and grammatical differences between British and American English are so slight and few as hardly ________.| A．to notice | B．being noticed | C．noticed | D．to be noticed |
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Our school forbid __________, that is to say, we are not allowed __________at school.| A．to smoke; to smoke | B．smoking; smoking | | C．smoking; to smoke | D．to smoke; smoking |
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