_______ with new challenges, he is always ready for them and never gives up.

The subway was crowded with passengers going home from market, most of ________ carrying heavy bags and baskets full of fruit and vegetables they had bought there.

Mary ______ all the housework, she dropped herself into the sofa, sighing with relief.

. They came together with the same ______ about the earth’s environment and the same dream of co-existing peacefully.

With a lot of difficult problems _________, the manager felt worried all the time.