______, but he couldn’t understand the logical connection of the two subjects.
Please don’t phone him between 1 and 3 p.m. tomorrow. He ______ a lecture then.
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.