—What do you think of being a volunteer, John?—I find it a stressful job but one ___ you can really help people.
That is the only way we can imagine______ the overuse of water in students’ bathroom.
—Peter, where did you guys go for the summer vacation? —We ______busy with our work for months, so we went to the beach to relax ourselves.
Many buildings in the city need repairing, but the one ______first is the library.
With her anger ______, the thought of punishing him arose in her mind.
Many young people leave their hometown to seek their _______ in big cities.