单项选择题

________enough time and money, the researchers would have been able to discover more in this field.

A．Giving
B．To give
C．Given
D．Being given
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单项选择题
We had to wait some time before the menu was brought to us and our orders ______.
A. taken
B. given
C. done
D. made
单项选择题
If you keep getting wrong numbers, your phone could be ______.
A. deceptive
B. defective
C. deficient
D. ineffective
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