They have been given two tickets for the new play at the Grand Theatre.for后面不是句子,所以肯定不是狀語從句.for the new play是two tickets的定語.a ticket for...“...的票”后面三個句子是怎么回事?...at the Grand Theatre可以看做the new play的定語，“大劇院的新戲劇”。How many tress主語 have been planted謂語 this year狀語？Mary主語 was asked謂語 to show me her new book主語補足語.The mokey主語 was seen謂語 to jump off the tree主語補足語.后兩個句子結(jié)構(gòu)比較類似，都是“動詞+ sb to do sth“的被動，主動語態(tài)中to do sth補充說明賓語sb，叫賓語補足語，被動語態(tài)中to do sth仍然是補充說明sb，但是sb成主語了，所以就叫主語補足語了。