The director of the research institute came in person to______that everything was all right.

A、 make out
B、 make sure
C、 make clear
D、 make up

【正确答案】 B

【答案解析】本题空格处是说确定一切都无问题。B项make sure“确定”符合题意，如：Wemust make sure that they can come．(我们一定要确定他们是否能来。)其他三项makeout“了解，填写”，make clear“解释”，make up“弥补，化妆”都不正确。