It is said that older people who are ______ eaters of fish during their youth lose fewer brain cells.

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In my view, biology is _____ chemistry, but a little easier than mathematics. [ ]

My car has broken down. Would you please sendsomeone to ________? — OK, my driver will soon be with you.

He promised to come to see you. —— But he ＿＿＿＿＿. I’ve been all alone.