问题

Only when the European countries’ financial system broke down _____to take measures to deal with those problems．

A:did they decide
B:they decided
C:they had decided
D:had they decided

正确答案是：

同类题型

This is the only way we can imagine himout of his foolish plan

How was your summer camp, Ben –________.I made so many friends.

I go _____ to the stadium when there’s a game, but usually I watch it on TV

In my apartment there are two rooms, _____ is used as a living room.

Is there any hope of saving his life? —His injuries are extremely serious, but he’s expected to ____.