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    【题目】"Can you solve the problem yourself?" Our science teacher asked Bob. (改为宾语从句)

    Our science teacher asked Bob _________he _________solve the problem himself.

    【答案】whether/ if could

    【解析】

    句意：我们的科学老师问鲍勃：“你能自己解决这个问题吗？”

    主句是一般过去时，从句使用过去的某种时态，此句“Can you solve the problem yourself?”是一般现在时，需改为一般过去时。宾语从句的语序是陈述语序，如果“一般疑问句”做宾语，需借助if/whether引导，再改为陈述语序。故答案为 (1). whether/ if (2). could。

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