—Where’s Sam? I can’t find him anywhere.
—Oh, he has two weeks ________ for a vacation.
In ancient times, food was ________ (存储) up for winter.
Shake the bottle well so that the milk ________ (混合) with the tea.
The ________ (秘密) of true friendship is to understand and to be understood.
Thank you for ________(警告) us not to swim here.
Believe it or not, the two surveys have ________ (相似的) results.