# 1เลือกประเภทBy this time next year, she ____ her first novel.will writewill have writtenwriteshas written
# 4เลือกประเภทBy next month, he ____ in this company for 10 years.will workwill be workingwill have workedworks
# 5เลือกประเภทBy 2026, scientists ____ a cure for that disease.will findwill have foundare findingfinds
# 6เลือกประเภทBy the time you wake up, I ____ to the airport.will have gonewill have wentam goingwill have going
# 7เลือกประเภทBy the end of this week, she ____ all her exams.will have completedcompletesis completingcomplete
# 8เลือกประเภทBy next summer, we ____ our dream house.will have builtsbuildswill have builthave built
# 9เลือกประเภทBy the time they arrive, we ____ for three hours.waitwill have waithave waitedwill have waited
# 11เลือกประเภทBy the end of this year, she ____ five books.will have publisheswill have publishingwill have publishedwill have publish
# 12เลือกประเภทBy tomorrow morning, they ____ their project.will have completedwill had completwill have completingwill have completes
# 13เลือกประเภทBy next weekend, we ____ all the preparations for the wedding.will have finishingwill have finisheswill have finishedwill have finish
# 14เลือกประเภทBy 2050, technology ____ even more advanced.will have becomewill have becamewill had becamewill have becom
# 15เลือกประเภทBy the time she turns 30, she ____ in five different countries.liveis livingliveswill have lived
# 16เลือกประเภทBy next Monday, the manager ____ a decision.will have madewill have makewill have madedwill have maked
# 17เลือกประเภทBy the time you read this letter, I ____ to another city.will have movingwill have movedwill have movewill have moves
# 18เลือกประเภทBy the time we get to the station, the train ____ .will have leavewill have leaveswill have leftwill have lefted
# 20เลือกประเภทBy the end of this decade, humans ____ on Mars.will have landedwill have landingwill have landeswill have land