问题
选择题
We haven't settled the problem of ________ it is necessary for him to study abroad.
A．why
B．whether
C．what
D．how
答案
答案：B
B 考察宾语从句。此处的whether是否，引导一个宾语从句作为介词of的宾语。
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We haven't settled the problem of ________ it is necessary for him to study abroad.
A．why
B．whether
C．what
D．how
答案：B
B 考察宾语从句。此处的whether是否，引导一个宾语从句作为介词of的宾语。