seven days is a long time为什么要用is不用are呢

seven days is a long time为什么要用is不用are呢 There are seven days in a w_____.China is a c_____ with a long history. seven -days is right or wrongOn Nation Day,people enjoy a seven-days holiday. 1.We are happy to have our () holiday,because seven days () a long time to have a picnic.A.seven-days;is B.seven-day;is C.seven-day;are D.seven-day's;are我认为是C,但答案是B,不知为什么2.I wabder if I can ask him () time.A.four B.fourth C. Our school library is open seven days a week. May Day is coming.We will have holidayA a seven-days B a seven-day Seven Days A Week 歌词 1.the town is 20 miles______hereA far from B far away from C away from D away2.during the spring festival many people can have a ______holidayA seven days B seven-day C seven-days D seven-days' 阅读理解China is becoming one of the most popular countries for a holiday.31.How long will the holiday last?A.Seven days.B.Five days.C.Nine days.D.Ten days.32.When will you arrive in Hangzhou?A.On Day 4.B.On Day 5.C.On Day 6.D.On Day 7.33.What wi Mrs.Green tells me that she is going to have a_____hoilday next month.A.seven days B.seven--daysC.seven—day There are seven days in a week对seven提问 We will have a ___holiday A seven day’s B seven―day C seven―days D seven days There are seven days in a Of the seven days in the a What did you do during the _____ holiday?A)seven day B)seven days C)seven-day D)seven-days 首字母填空 要快. 今晚快Lana is my sister. she is three years y-----than me. We are in the same school but not in the same g----.Last night,Lana and l talked for a long time.She told me she was anxious these days,because in about seven days, There are seven days in a week There are seven days in a week .They are Sunday Monday TuesThere are seven days in a weekThere are seven days in a week .They are Sunday Monday Tuesday Wednesday Thursday Friday Saturday .Sunday is the first day of the there are seven days in a week.对seven days提问