【单选题】【消耗次数:1】
Neither John nor his roommates _____ in the dormitory yesterday evening.
was
were
has been
had been
参考答案:
复制
纠错
相关题目
【单选题】 The residents, _____had been damaged by the fire, were given help by the Red Cross.
①  all of their homes
②  all their homes
③  whose all homes
④  all of whose homes
【单选题】 The residents, _____had been damaged by the fire, were given help by the Red Cross.
①  all of their homes
②  all their homes
③  whose all homes
④  all of whose homes
【单选题】 He has been there, [填空]?
①  hasnt he
②  has he
③  does he
④  doesnt he
【单选题】 My teacher had been with me several weeks before I understood that everything has a name.
①  A.在我知道每样东西都有一个名字以前,老师已经教我好几个星期了。
②  B.老师和我相处了好几个星期,我都不知道每样东西还有一个名字。
③  C.在我知道每样东西都有一个名字以前,老师和我已经相处好几个星期了。
④  D.老师教了我好几个星期,我才知道每样东西都有一个名字。
【单选题】 If the doctor had been available, the child ____________.
①  would not die
②  could not have died
③  might not die
④  should not have died
【单选题】 He has been writing the essay the whole morning and he still ___ .
①  has been
②  does
③  has
④  is
【单选题】 He has been writing the essay the whole morning and he still ___ .
①  has been
②  does
③  has
④  is
【单选题】 I hope ___ the little ___ I have been able to do has been of some use.
①  that; that
②  /; by which?
③  what; what
④  /; with which
【单选题】 The disappearance of her paper has never been _____.
①  counted for
②  looked up
③  accounted for
④  checked up
【多选题】 You speak ____________ you had really been there.
①  as soon as
②  as many as
③  as if
④  as though
随机题目
【判断题】 对于同步精度要求较高的场合,可以采用由比例调速阀和电液伺服阀组成的同步回路。该说法( )
①  正确
②  错误
【单选题】 锁紧回路的功用是使液压缸能在任意位置上停留,且停留后不会因内力作用而移动位置的回路。该说法( )
①  正确
②  错误
【判断题】 压力机的类型很多,其中四柱式液压压力机最为典型。该说法( )
①  正确
②  错误
【单选题】 堆码机主要由液压马达驱动的行走底盘部分和一个四自由度的圆柱坐标式机械手组成。该说法( )
①  正确
②  错误
【单选题】 比例阀可以分为比例压力阀、比例流量阀和比例方向阀等三类。该说法( )
①  正确
②  错误
【单选题】 电液比例控制的核心元件是电液比例阀,简称比例阀。该说法( )
①  正确
②  错误
【判断题】 一个完整的控制系统,其输入、输出接口要完成所具有的功能,必须要使软件和硬件恰当配合。该说法( )
①  正确
②  错误
【单选题】 不属于点检一般的是( )
①  定期点检
②  日常点检
③  不定期点检
【单选题】 对液压系统的初步诊断包括( )
① 
② 
③ 
④ 
【单选题】 摸包括( )
①  摸温升
②  摸振动
③  以上表述全正确
④  摸爬行