The last time we had great fun was_____ we were visiting the Water Park. [ ]A. howB. whenC. why D. w

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• This photo of mine was taken _____ stood the famous high tower. [ ]A. which B. where C. in which D.
• 请运用所学知识回答下列问题：（1）在下列实例中，属于有性生殖的是______．①“试管婴儿”的诞生②“脱毒土豆”的培育（2）“螳螂捕蝉，黄雀在后”这句谚语隐含的一条食物链是：______．（3）-生物
• As a new diplomat, he often thinks of_____ he can react more appropriately on such occasions.[ ]A. w
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• 下列哪项属于植物的有性生殖（）A．桃树的开花结实B．椒草的用叶生殖C．马铃薯的用块茎生殖D．植物的组织培养-生物
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• In peace, too, the Red Cross is expected to send help _____ there is human suffering. [ ]A. whoever
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• It is easy to set the goal of our production for next year, butto achieve it takes a lot of trouble.
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• The terrible earthquake took place early this month ______ three southern countries meet.[ ]A. where
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• 下列诗句中的描述与生殖现象无关的是（）A．春种一粒粟，秋收万颗子B．离离原上草，一岁一枯荣C．红豆生南国，春来发几枝D．忽如一夜春风来，千树万树梨花开-生物
• Measures have been taken to solve the problem，but it may be some time________the situation improves.
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