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The professor suggested that we (send) ______ a few students to help the other groups.

【参考答案】

(should) send
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Paint containing lead is a major (11) of lead poisoning in children. The heavy metal enters the body when children breathe the paint dust or fumes in the (12) Or when babies put their mouth on painted surfaces or swallow pieces of paint. Lead can (13) the brain and the nervous system. It can decrease intelligence, create behavior problems and slow a child’s (14) . Researchers tested new household enamel paints from twelve countries in Africa, Asia and South America. The paints were sold under different (15) names. The study found that almost three-fourths of the brands had dangerously high levels of lead.
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All the teachers, (include) ______ those who have retired, have been invited to the party to welcome the new year.
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