raise v.A.上升 B.募集,征集 C.下降
All passengers______go through safety check before they take a plane.
_____ carefully, Michael! There’s a school ahead.
Air pollution has become__________ than ever before. We must do something to stop it.
Old Mr. Black lives happily with his three dogs. of them are part of his family.
— can you finish the report on food safety?— In two days.