用括号内所给动词的适当形式填空。
小题1:The report shows that some animals can _______ (train) to work for people.
小题2:Those dried flowers _______ (not sell) as well as the fresh ones.
小题3:Where is Jim? I’m afraid he _______ (forget) the visit to the museum.
小题4:The passengers were told that the plane _______ (take) off in two hours because of the bad weather.
小题5:—It is reported the police searched the whole building yesterday but nothing unusual was found there.
—Really? I _______ (think) the thief had already been caught.
小题6:In order to complete the task, all the club members had no choice but _____ (stay) up late.
小题7:He failed the math exam again because the bell _______ (ring) before he finished the rest half of the testing-paper.
小题8:Many scientists are always trying to devote themselves to _____ (study) in different areas.
小题1:be trained
小题2:don’t sell
小题3:has forgotten
小题4:would take
小题5:thought
小题6:to stay
小题7:had rung/rang
小题8:studying
小题1:考查被动语态。主语和谓语train是被动关系，故用被动语态。故填be trained。
小题2:考查被动语态。sell, wash等词，当表示事物本身的属性时，用主动表示被动，故填don’t sell。
小题3:考查时态。根据is可知，是现在的情况，句意是“恐怕他已经忘记要去参观博物馆了”。故填has forgotten。
小题4:考查时态。根据were可知，从句用过去将来时。故填would take。
小题5:考查时态。根据情境可知，“我”原先认为......，故用过去时。故填thought。
小题6:考查固定句型。have no choice but to do sth别无选择只好做某事。故填to stay。
小题7:考查时态。在完成剩下的题目之前，铃响了。用过去完成时或过去时皆可。故填had rung/rang。
小题8:考查固定搭配。devote oneself to doing sth“致力于......”。故填studying。