Aftermonthsofvoyage,Columbusarrivedin______laterprovedtobeanewcontinent.
A、whereC
注意， 本句话并非定语从句， 而是宾语从句。 因为在介词 in 后面，应该用 what 引导的宾语从句， what 在宾语从句中作主语。
Decisiononwhetherthemessageisrightorwrongshouldatleastcomeafter_____whatthemessageis.
The boy complained _______ a pain in his stomach.
His intelligence will ________ him to get a scholarship to college.
Becauseofthebadweather,thesportsmeethadtobe________.
Itrainedhardyesterday,______preventedmefromgoingtothepark.
