2013年英语六级模拟考题（9）：1.There is much I enjoy about the changing seasons, but my favorite time is the ________ from fall to winter.A) transmissionB) transformationC) transitionD) transfer。
1.There is much I enjoy about the changing seasons, but my favorite time is the ________ from fall to winter.
2.I think we need to see an investment ________ before we make an expensive mistake.
3.The ________ on this apartment expires in a year’s time.
4.The elderly Russians find it hard to live on their state ________.
5.There is supposed to be a safety ________ which makes it impossible for trains to collide.