The park was full of people,____themselves in the sunshine.
______ bright a talker you are, there are time when it’s better to remain silent.
—Have your read the article A Dirty Beijing, which is about air pollution? —Yes. It’s highly informative. I _____no idea that the PM2.5 there sometimes reached 300.
—What do you think of being a volunteer, John? —I find it a stressful job but one ___ you can really help people.
—Is there anything wrong, Bob? You look sad. —Oh, nothing much. In fact , I ____ of my friends back home.
It is not always easy for the general public to see _____use a new invention can be of to their daily life.