Their loving ____ was discovered by their parents.

One of the main __________ of the summit was “sustainable development”,or the question how we can continue developing the world without damaging the environment.

She is the only one among the ______ writers who _______ stories for children.

An increasing number of people enjoy sun-bathing, but experts warn that too much ________of the body to strong sunlight is harmful．

The way he suggests to us doesn’t make______