You can't {#blank#}1{#/blank#} {#blank#}2{#/blank#} others to help you.

Temperatures {#blank#}1{#/blank#} sharply in most cities in China, many people have put on their long underwear, known as qiuku in China.

→We dare not {#blank#}1{#/blank#} {#blank#}2{#/blank#} {#blank#}3{#/blank#} to climb up the cliff, for it is too slippery.

{#blank#}1{#/blank#} {#blank#}2{#/blank#} Jim entered the house when it began to rain.

{#blank#}1{#/blank#} {#blank#}2{#/blank#} human activity{#blank#}3{#/blank#} has led to global warming, which has aroused widespread concern.