Câu hỏi:

He is writing a book on the representation of woman in medieval art.

We ought to keep these proposals secret from the chairman for the time being.

Certain courses are compulsory; others are optional.

I've put the cake on a high shelf where he can't get at it.

I have a modest little glass fish tank where I keep a variety of small fish.

The Red Cross is an international humanitarian agency dedicated to reducing the sufferings of wounded soldiers, civilians and prisoners of war.

Mr. Smith’s new neighbors appear to be very friendly.