问题
Beijing ______a lot in the past ten years. Now it has become one of the biggest modern______ in the world.
A:changes, cities
B:changed, city
C:changed, cities
D:has changed, cities
B:changed, city
C:changed, cities
D:has changed, cities
正确答案是：
同类题型
Jim, ________ you answer the last question? — Sorry, I can’t. It’s too hard.
Would you like some tea or coffee? —__________. I would like some water.
Not until I came home last night ________ to bed.
Lucy sits _______ the third row, _______ Jim’s left. [ ]
If wenow to protect the environment, we’ll live to regret it.