units 3 travel journal 第二部分: 英语知识运用第一节:单项填空(共15小题;每小题1分,满分15分)从a、b、c、d四个选项中,选出可以填入空白处的最佳选项。 21. —what is your plan for the holiday, paul? —i’ll go on a trip to yunnan province with my family. —_____. a. have a nice time b. good luck c. come back soon d. congratulations 22. the professor _____ his thoughts before giving his lecture, so that he could make himself understood well. a. organized b. recognized c. realized