日语
韩语
法语
德语
西班牙语
意大利语
阿拉伯语
葡萄牙语
越南语
俄语
芬兰语
泰语
第一节 单项填空（共25小题；每小题1分，满分25分）
21. You’ll succeed in the end ____you don’t give up halfway.
A. even if B. as long as C. as though D. unless
22. Large quantities of water ____ for irrigation.
A. is needed B. has needed C. need D. are needed
23. I trusted him but he let me _____.
A. off B. alone C. down D. out
21. You’ll succeed in the end ____you don’t give up halfway.
A. even if B. as long as C. as though D. unless
22. Large quantities of water ____ for irrigation.
A. is needed B. has needed C. need D. are needed
23. I trusted him but he let me _____.
A. off B. alone C. down D. out
