The medicine should be put {#blank#}1{#/blank#} it is not {#blank#}2{#/blank#} {#blank#}3{#/blank#} children.

{#blank#}1{#/blank#} to online communications, some students {#blank#}2{#/blank#} {#blank#}3{#/blank#} {#blank#}4{#/blank#} {#blank#}5{#/blank#} be buried in a virtual world.

{#blank#}1{#/blank#} about the student, the teacher encouraged her not to lose heart.

→For me, {#blank#}1{#/blank#} {#blank#}2{#/blank#} {#blank#}3{#/blank#} difficult than this math problem.

→The child has been badly treated, {#blank#}1{#/blank#}. (定语从句)

→{#blank#}2{#/blank#} is that the child has been badly treated. (主语从句)