— Why are most children under too much pressure? — Because their parents always compare them _________others.
_________, when Marx was already ________, he began to learn Russian.
He made a serious mistake, but he took action to change that _________ it got worse.
We should try our best to make ______ world that is safer, cleaner and healthier than ____ one we are living in now.
—Hey, Tom. Let's go swimming. —Just a moment. I______ a message.
—What should we do to reduce food waste? —In a restaurant only order as________ as we need and try to eat it up.