单选题 Such electronic tubes ______ in a radio set are also found in a TV set.
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单选题 All members ______ are admitted to the auditorium.
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单选题 --When ___ this kind of computers ______?
--Last year.
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单选题 Writers can accurately describe objects ______ have never seen.
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单选题 How many trees ____ this year?
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单选题 Neither of them ______ in China.
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单选题 I’ve got a bottle of beer, but I haven’t got anything ____ I can open it with.
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单选题 Look! A nice picture ____ for our teacher.
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