问题
选择题
I still doubt _____ he can overcome(克服) all the difficulties..
A.why
B.whether
C.when
D.how
答案
答案:B
考查doubt的用法。doubt用于肯定句时用whether引导同位语从句;用于否定句时,用that引导。本句为肯定形式,故选B。
I still doubt _____ he can overcome(克服) all the difficulties..
A.why
B.whether
C.when
D.how
答案:B
考查doubt的用法。doubt用于肯定句时用whether引导同位语从句;用于否定句时,用that引导。本句为肯定形式,故选B。