Environmentalists urged that more effective measures ___________by the government to reduce the pollution.
It is written clearly in the requirements that all passengers _______ check onto board thirty minutes before the plane takes off.
—We need to _______ a time to have a talk.—What about tomorrow? I'm too busy now.
During the two conferences, the journalists from the whole country _______ many problems the peasants were greatly concerned about.
Meng Peij ie,an ordinary girl who was among the 10 people awarded the title of “Touching China 2011”,must be both optimistic and strong-minded. Otherwise, she _______ her disabled adoptive mother for 12 years.
一Tom failed the exam again.一Personally, he's but stupid. He's just too lazy.