We must {#blank#}1{#/blank#} the knowledge we have learned so that we'll be more likely to innovate in the future.

When life gets hard and you want to {#blank#}1{#/blank#}, remember that life is full of ups and downs, and without the downs, the ups would mean nothing.

Reading{#blank#}1{#/blank#} {#blank#}2{#/blank#}most of my free time.

He thinks that it is necessary{#blank#}1{#/blank#} for the trip.

{#blank#}1{#/blank#}, they have done a good job.