you are off by at least 500 years.全句是：If you think Colunbus was the first Old World explorer to discover the New World,you're off by at least 500 yaers.我觉得，是不是“落后”或“落伍”的意思？

you are off by at least 500 years.全句是：If you think Colunbus was the first Old World explorer to discover the New World,you're off by at least 500 yaers.我觉得，是不是“落后”或“落伍”的意思？ They ______ to Guangzhou ______ the train which ______ at 8:00 in the morning.A.will go offThey ______ to Guangzhou ______ the train which ______ at 8:00 in the morning.A.will go off … by… will leaveB.are going to go off … by … is going to le you are off your 我写的是什么?I now work in,I now want to see you,I do not know how you are off-Le? I now work in,I now want to see you,I do not know how you are off-Le?请速度快些,我这有急事````` .Are you sure you can come by at nine?中by怎么解释? I can dance( ) you.are yes off have for at what can't just the中选 —when are you leaving?—My plane ___ at 10:30.A.takes off B.took off C.has taken off D.will take—when are you leaving?—My plane ___ at 10:30.A.takes off B.took off C.has taken off D.will take off答案给的是A,但为什么选D不可以?理 英语作文评析,Attention,please!I have something to tell you.All teachers and students are going to go the Space Museum this Saturday.You are required to gather at 7:30 in the morning at the school gate and get togather set off by bus.Afternoon a Are you by yourself? I'm sure you are b_____ .you can stay at home by yourself. I am sure you are b____,You can stay at home by yourself you are so young that we can't leave you at home by ()AoneselfBourselvesCmyselfDyourself If you are invited at 7:00 by an American friend ,you should________ 1.Where ___ you ___(buy)the book?2.We don't live in the city .We are only __(visit)3.What did you do ____ your day off?A on B in C by D at 4.The pears taste ___,and ___WellA Well,sell B good,sell C well,sold D good ,are sold are you at it? are you at work you are at my