问题
选择题
They are considering______ they should do the experiment .
A．weather
B．that
C．whether
D．what
答案
答案：C
考查连词，句意：他们正在考虑他们是否应该做实验。所以用whether 是否。
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They are considering______ they should do the experiment .
A．weather
B．that
C．whether
D．what
答案：C
考查连词，句意：他们正在考虑他们是否应该做实验。所以用whether 是否。