用括号内所给动词的适当形式填空。
【小题1】Eighty students have entered the writing petition since it was held . (hold)
【小题2】Girls, don’t be (not be) nervous about speaking English.
【小题3】His bike broke ( break) down when he went to work yesterday.
【小题4】I think more money is needed (need) to carry on with our work.
【小题5】The oil pricehas risen (rise) a lot in the past ten months.
【小题6】While they were preparing (prepare) for the exam tomorrow, the door bell rang.
【小题7】It is important not to feed (not feed) your goldfish too much food.
【小题8】My teacher told me that light travels (travel) faster than sound.
【小题9】They were heard singing ( sing) in the room just now.
【小题10】The report says some animals can be made (make) to work for people after training.
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解析：
【小题1】考查被动语态。the writing petition“写作比赛”，是被举办的。since从句用一般过去时。故填was held。
【小题2】考查祈使句。祈使句以动词原形开头，否定在句首加don’t。故填don’t be。
【小题3】考查时态。根据went可知，主句用过去时。故填broke。
【小题4】考查被动语态。money是被需要的。故填is needed。
【小题5】考查时态。in the past ten months“在过去的十个月里”，与现在完成时连用。故填has risen。
【小题6】考查while的用法。while与进行时连用。根据rang可知，用过去进行时。故填were preparing。
【小题7】考查固定句型。It is+形容词+to do sth“做某事怎么样”。故填not to feed。
【小题8】考查宾语从句的时态。宾语从句的时态与主句一致，当表示的是客观真理时，从句用现在时。故填travels。
【小题9】考查感官动词。hear sb doing sth“听到某人正在做某事”。故填singing。
【小题10】考查感官动词的用法。make sb do sth“让某人做某事”；sb be made to do sth“某人被迫做某事”。故填be made。