Mary is ________ someone might recognizeher

对下列各句中加点字解释，不正确的一项是（ ）

Now people all over the world are _________the terrible H1N1 flu.

The building being built now is said to be ______ for students not for teachers.

We all had a lot of fun at the barbecue yesterdayPity you weren’t there.—I really should have gone with you but I _____ on some remaining problems