单选题：There is no doubt __________ Herbert is the most industrious

题目内容：

There is no doubt __________ Herbert is the most industrious student in our class. A． whether
B． what
C． that
D． if

参考答案：

答案解析：

The work they are doing is __________ great value.

The work they are doing is __________ great value.A． in B． of C． by D． from

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what did she do in Gull Lake Biological Station?She worked as_____________

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What do IKD's clients like about the company's location?A．It is easy to get t B．

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