Taking exercise is the key ______ your health.

题型：单选题题类：常考题难易度：普通

黑龙江省大庆市铁人中学2018-2019学年高二上学期英语期中考试试卷

A、to improve B、to improving C、in improving D、of improving

举一反三

table computers like Apple's iPad just before bed, a research says recently, can lead to poor night sleep.

Many students believe the choice of their course and universities should ________their own interest.

Whether the liquid medicine is applied {#blank#}1{#/blank#} {#blank#}2{#/blank#} or not can {#blank#}3{#/blank#} {#blank#}4{#/blank#} {#blank#}5{#/blank#} in exerting its effect.

Mother tigers cried loudly in {#blank#}1{#/blank#}（回应）to their babies.

The letter wasn't addressed to me but I opened it out of c{#blank#}1{#/blank#}.

The lost child desired nothing but _______ home.

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