例:The conference will have lasted a full week by the time it ends. 会议从开始到结束将持续整整一个星期。 16.将来完成进行时:(will have been doing) 表示一个动作延续到将来某个...
例:If it rains tomorrow, we will stay at home. 如果明天下雨,我们会待在家里。 2. 现在进行时(am/is/are doing) ① 表示此时此刻正在发生的事情。 例:He is listning to the music n...
I had been cleaning my room the whole morning when she came.(当他来的时候,我已经打扫了一早上的房间了。) 将来完成进行时(will have been doing)将来完成进行时表示站在某个将来的...
A. supposed to have been written B. supposed to be written C. supposing to have been written D. supposing to be written 4. The money with which you were to buy dog food is gone, but Spot looks so hungry! 让你们用来买狗食的钱已经花光了,可是斑点看上...
A. must B. may C. can D. will 答案B. 表可能性只能用may.此句意可从后半句推出。 比较have to和must 1) 两词都是"必须"的意思,have to表示客观的需要,must 表示说话人主观上的看法,既主观上的必要。 My brother was very ill, so I had to call the doctor in the m...
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