The train was to arrive at 11. 30, but it was an hour late.
The Ministry of Education is ______ that primary and middle school students perform one hour of physical exercise a day.
The teacher called Tom to his office because he was caught ______ in the exam.
Experts warn that global warming will cause climate changes, including more ______ floods, heat waves and droughts.
The most satisfying life is one ______ you know the things you’re interested in and pursue it in your own way.
— Li Lin hasn’t turned up yet, but he promised to come to the party.— He ______ home. He is a man of keeping his word.