一、单项选择题(本大题共30小题，每小题2分，共60分)在每小题列出的四个备选项中选择一个最佳答案，错选、多选或未选均无分。1. Weve had a good start, but next, more work needs _ to achieve the final success.A. being done B. do C. to be done D. to do2. Dont worry. The hard work that you do now _ later in life.A. will be repaid B. was being repaidC. has been repaid D. was repaid3. Time, _ correctly, is money in the bank.A. to use B. used C. using D. use4. Bicycling is good exercise; _, it does not pollute the air.A. neve
