an is a/an _______ secretary in our office, forhe is able to do tasks successfully, without wasting time or energy

The Expo site should be _____from anywhere in the city of Shanghai within 90 minutes by bus, subways and special taxis. [ ]

The chief editor asked the reporters to ________ the article so as to make it fit the space available on the paper.

Can I tell my best friend about it? —No. I don’t want anyone else to know. You _________ let it out.

Look! The girl with long hair is drawing a picture. Is she Sandy— It ______ be her. I’m not sure.