问题

We are confident that the environment ________ by our further efforts to reduce production.

A:had improved;
B:is improved;
C:will be improved;
D:improved;

正确答案是：

同类题型

Sally worked late in the evening to finish her report __________ her boss could read it first thing next morning.

Look! What is the boy doing— He _______table tennis.

Do you think the thief entered through the window?—No, if he had, I don’t believe, _______ broken the living-room’s window.

I want to know____________.—- Why not go to Tai Hu That’s a goodplace.

What place is it?—Haven’t you found out we ______back where we ______?