In the playground I saw a boy ___ I thought was your brother.
The winter of 1990 was extremely bad. ______, most people say it was the worst winter of their lives.
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.