at/on/in the left?应该用哪个?

at/on/in the left?应该用哪个? on/at/in the left side介词用哪一个 When does he join your team?______he left the changjiang team________这里应该填什么?教教我吧,在in 、on 、after 、at中选一个 The camel is blind( )the right eye and lame ( ) the left foot.Ain;in B on;on C at;at Dwith;with这个应该选哪个答案的,我觉得是选A但是参考答案选的是B? The camel was blind（ ）the right eye and only ate the grass ( ) the left side.a.on,in b.in,on c.in,at d.at,on on the left 和at the left区别? the cakes are ( ) the left A.in B.on C.at D.beside Look at the picture ,The house is___ the left.A.on B.in C.at D.of （ ）There is a boat_____the lake.______the left side of the lake,there is a hill.A.in;At B.on;At C.in;At D.on;On the hospital is ___ the second turning on the left.in on at 选哪个呢?为甚呢? IN ON AT THE Turn left-------the bookstore ------上填什么?A.on B.at C.in He left ___ the morning of September tenth.A.in B.at C.on D.for Turn left ____ the traffic lights?答案?有at,in,on He left __ the door open?A in B on C at Dwith Qinghai Library is ) the left of Xining Square.A.in B.on C.at D.∕ the camel was blind ___the right eye and only eat grass ____the left sideA.on;in B.in;on C.in;at D.at;on Go ---the street and turn left ---the first crossing.A along ;on Bdown;at Calong;in Ddown;onGo ---the street and turn left ---the first crossing.A along ;on B down;at C along;in D down;on