Our milk powder is especially suitable for children under 6, as it helps a lot to build the body's natural ________.

After three years’ study, Jane got a ________ for teaching English.

. In our class, when the bell rang and the teacher closed his book, it was a ______for everyone to stand up.

 If by any chance someone comes to see me, ask them to leave a________.

One of the advantages of living on the top floor of a high rise is that you can get a good ____.