问题

Our duty is to ______ their country against bothdomestic and foreign enemies’ attack

A:of whom
B:whose
C:that
D:of which

正确答案是：

同类题型

The reason__________ the president of Czech is widely discussed recently is__________ he was seen “to steal” a pen at a press conference in Chile [ ]

Look! The man at thegate be our headmaster.He stands there every morning. —No,it be him. He is holding a meeting inthe office now.

I tried phoning her office,but I couldn’t ________.

We were prevented ________ the project on time by the bad weather[ ]

I wonder why he has been acting so strangely these days.— Recent pressure at work may ________ his behavior.