精选优质文档-倾情为你奉上定语从句专题导学案开心自测1. All of the flowers now raised here have developed from those _ in the forest.A. once they grew B. they grew once C. they once grew D. once grew2. In the office I never seem to have time until after 5:30 pm, _ many people have gone home.A. that B. which C. whose time D. by which time3. Is this the reason _ at the meeting for his carelessness in his work?A. he explained