问题
选择题
There is some doubt ____ the sick schoolboy can join in the English evening party on Sunday.
A．/
B．whether
C．that
D．which
答案
B
考查doubt用法.在肯定句中，doubt后面跟 whether引起的从句，一般不能用that引导。There is some doubt表达肯定含义,故选B.