a bikes and three cars over there.前面应该填什么?

a bikes and three cars over there.前面应该填什么? We have _____ books to read every year.A.three hundredB.three hundred ofC.three hundredsD.three hundreds ofIn China,bikes and buses are two popular _____ of tranaportation.A.partsB.kindsC.thingsD.subjects .阅读判断 Tom goes to school on his bike..He puts his bike beside the school.There are many bikes there during the school time.At half past three,the students take their bikes and go home.Then you can see a lot of bikes running in the streets.Som beautiful school bikes and cars THREE AND A HALF怎么样 three-and-a-half billion ( ) 42.Jimmy has sixteen broken bikes to ____ and give away to kids who don't have bikes.A.fix up B.set up C.put up receive a consignment of bikes there are three bikes near the tree改为单数形式there are three bikes near the tree改为单数形式 They went there ______________. A.by bikes B. with bikes C. on bikes D. on bike three years and half a year three and-a-half times中文是什么? about three and a half months ago 《Three and Most bikes are for one _____(ride),but sometimes a bike can take two or three people.应该是riding还是to ride，为什么？？？ 选词填空school cars easy air exercise Many people in the world ride bikes every day.There are more bikes than_____in the world today.A lot of Chinese people ride bikes to go to work or_____.Bikes are much cheaper than cars.And i They spent a lot of time ___ (go ) back.They had bikes and they ___(feel)convenient. More and more Americans go to work on bikes.Do you know()?A.where B.why C.when D.why