①-Where does your sister work,Betty?-She is in a hospital_____she works as a nurse.A.that B.whi

①-Where does your sister work,Betty?-She is in a hospital_____she works as a nurse.A.that B.whi
①-Where does your sister work,Betty?
-She is in a hospital_____she works as a nurse.
A.that B.which C.where D.what
我选的A,答案是C为什么?
②No one tell us___,so we need your help.
我选的how we should do,答案是how to do it.这又是为什么?
③A lot of traffic was kept from going into the city centre___the heavy snow,应该选because我选对了,=我是蒙的、、
④Remember to __ __ __the red light!我填的take care of答案是look out of我这样可以吗?