时态语态
1．—Sir，I'm here.
—Please listen.I________asking your parents to come our school，but I'd like to hear your opinion first.
A．have considered B．am going to consider
C．considered D．have been considering
答案 D [句意：——老师，我在。——请听好。我一直在考虑让你父母来学校，但我想先听听你的意见。have been considering是现在完成进行时，表示从过去开始的一个动作一直持续到现在并且还在进行。]
2．Hello，you________7856321.But I'm sorry，right now I'm unable to answer your questions.
A．reached B．were reaching
C．have reached D．had reached
答案 C [句意：您好！您已拨通了7856321。但是很抱歉，此刻我不能回答您的问题。根据I'm sorry可知谈论的是现在的情况；根据语境可知“已经拔通”，所以用现在完成时。]
3．—May I speak to Mr.Williams at five tomorrow afternoon?
—I'm sorry.He________a conference then.
A．attends B．has attended
C．would attend D．will be attending
答案 D [考查时态。答句中的then指代的是at five tomorrow afternoon，此处意为“明天下午五点那个时候他将正在开会”，故应用将来进行时。]
4．—Did you telephone Uncle Sam our plan for the Christmas holidays on his farm?
—Yes，he was happy about our arrival，and he eagerly asked when________.
