单选题
A. claim B. advanced C. challenge D. but E. constantly F. declare G. piles up H. limited I. significance J. hesitated K. and L. reduced M. regret N. scary O. totally Some years ago I was offered a writing assignment that would require three months of travel through Europe. I had been abroad a couple of times, but I could hardly 42 to know my way around the continent. Moreover, my knowledge of foreign languages was 43 to a little college French. I hesitated. How would I, unable to speak the language, 44 unfamiliar with local geography or transportation systems, set up interviews and do research? It seemed impossible, and with considerable 45 I sat down to write a letter begging off. Halfway through, a thought ran through my mind: you can't learn if you don't try. So I accepted the assignment. There were some bad moments, 46 by the time I had finished the trip I was an experienced traveler. And ever since, I have never 47 to head for even the most remote of places, without guides or even 48 bookings, confident that somehow I will manage. The point is that the new, the different, is almost by definition 49 . But each time you try something, you learn, and as the learning 50 , the world opens to you. I've learned to ski at 40, and flown up the Rhine River in a balloon. And I know I'll go on doing such things. It's not because I'm braver or more daring than others. I'm not. But I'll accept anxiety as another name for 51 and I believe I can accomplish wonders.
问答题
【正确答案】A
【答案解析】空白处缺谓语动词，需要一个动词原形，而且之后要能接带to的不定式结构。claim to do sth. “声称做某事”符合句意。这里不是正式的“宣布”，不能填declare。