Question

)You can give the document to _______is in the office.However, _______to require a written paper for it.

A．who;make sure	B．whom;making sure
C．whomever;be sure	D．whoever;be sure

Answer 1

D

考查名词性从句。whoever引导宾语从句，在从句中作主语;be sure开始一个祈使句。