积累与巩固 I.用所给单词的适当形式填空。 1.Rice is planted_(plant)in South China. 2.These tall buildings were built_(build)last year. 3.These books should be taken (take)to the classroom. 4.Jim's room is being cleaned (clean)now. 5.Teenagers should be allowed (allow)to make their own decisions. 导航页导航页 积累与巩固 Ⅰ.用所给单词的适当形式填空。 1.Rice __________(plant)in South China. 2.These tall buildings __________(build)last year. 3.These books should __________(take)to the classroom. 4.Jim’s room ___________________(clean)now. 5.Teenagers should be __________(allow)to make their own decisions. is planted were built be taken is being cleaned allowed