(no matter how...; join)

Let us {#blank#}1{#/blank#} {#blank#}2{#/blank#} {#blank#}3{#/blank#} {#blank#}4{#/blank#} the historic opportunity we have now to meet this double need.

The lifeguards are being trained to {#blank#}1{#/blank#} {#blank#}2{#/blank#} any possible emergency.

{#blank#}1{#/blank#} {#blank#}2{#/blank#}his resume, he's the suitable person for the job we are looking for.

{#blank#}1{#/blank#}, my best friend changed my attitude towards life.