英语翻译Let A ,B and C be three points in a plane,such that AB/BC is equal to 3/5.Which of the following could be the ratio of AB/AC?choice 1=1/2 choice 2=1:3 choice 3=3:8A=choice 1B=choice 2C=choice 3D=choice 1 and 3E=choice 1,2 and 3

Tom,Let,s play__that ball.A.with B./ C.and 英语翻译A and B of C呢? let's ___a film.A.go and see B.go and find C.look at ___open the door.A.let.B.let is C.let___open the door.A.let.B.let is C.let us Let’s ( ) singing and dancing.A.go B.fly C.Let’s ( ) singing and dancing.A.go B.fly C.play 证明1.Let A,B,and C be sets.Prove thatA∪包含 (A∪B ∪C).2.Let A,B,and C be sets.Prove that(A-C)∩(C -B) = 空集 let a,b and c be rational numbers and b=0.24-0.26a,c=0.26-0.24a,then a^2-b^2+c^2= let a,b and c be rational numbers and b=0.24-0.26a,c=0.26-0.24a,then a^2-b^2+c^2= let ( )water the trees.A,lucy and i B,i and lucy C,lucy and me D,me and lucy Let,s go and have a( ) A.look B.see C.look at Let`s go and watch them play___chess.A.a b./ c.the d.an 英语翻译Once the actor Edwards told his fans,Be yourself and don't let anybody ------- you around.a.pull b.push c.take d.turn 英语翻译He liked to ___ himeself busy all day long both at home and in office.A.keep B.stay C.let __5___go to her home and have a look at__6____.5 A she B Let C Lets D Let's 6 A they B it C them Let's go and have a_______.A.look B.see C.watch Let's go and ask A.he B.she C.him 【选哪个?】 for sports and games let people____their body.A.exercise B.exercises C.to exercise ()go and play there?A.Shall us B.Shall we C.Let we