—Are you pleased with what he has done?
—Not a bit. It couldn't be________.
| A．so bad | B．much better |
| C．any worse | D．best |
The winter of 1990 was extremely bad. ______, most people say it was the worst winter of their lives.
| A．At last | B．As a result | C．In a word | D．In fact |
Please don’t phone him between 1 and 3 p.m. tomorrow. He ______ a lecture then.
| A．will have delivered | B．has been delivering |
| C．will be delivering | D．delivers |
The Ministry of Education is ______ that primary and middle school students perform one hour of physical exercise a day.
| A．advocating | B．inspecting | C．recommending | D．commanding |
The teacher called Tom to his office because he was caught ______ in the exam.
| A．to cheat | B．cheating | C．cheated | D．cheat |
Experts warn that global warming will cause climate changes, including more ______ floods, heat waves and droughts.
| A．frequent | B．usual | C．ordinary | D．common |