这道题I___a letter from him since he left. ( get )答案应该是have g...
如果改为have had则句意不通了 那样就直接用一般过去时就可以了啊 并且又要用get的正确形式填空应填 haven't got(在否定句中，瞬间性动词可以与时间段连用)你如果用have had符合题目要求吗？？
i ___a letter from him since he left. A,didn't receive B.haven't...
1.I ___a letter from him since he left.A,didn't receive B.haven't got C.didn't have D.haven't heard 答案选B.haven't got 自从他离开以后，我都没有收到过他的来信了。2.jake broke his leg,___? A.didn't jake Bdidn't he 答案选B didn't he 3.meimei is better ...
I a letter from him since he left. A.didn’t receive B.haven...
根据下文时间状语从句，可知本句描述的是从过去持续到现在的动作，故用现在完成时态，haven’t heard表示听到，故选Ｃ。点评：英语中的时态主要是借助于时间状语与上下文语境来进行判断。解答此类题型，首先要注意句子中的时间状语，如果没有则要通过分析上下文，结合语境来判断句子的时态。
i have never heard from him since he left
A 我没收到他的信
这里have和have got有的互换有的不能换,依据是什么?
您好，have 换成 have got 时，通常 have 需要含有（有，拥有）含义，属于 have 的（实义动词）的用法，或是情态动词 have to（不得不）时，而且通常只能用在现在时态，较少用于过去时态：1）He had a drink before dinner.（had a drink 名词 = drink 动词）had = 喝，≠ 有，拥有，所以（...
某校180名学生参加数学考试,平均成绩是69分,其中及格学生的平均成绩为78...
I have bought this dictionary for three years. 这本字典我已买三年了。(误) 上句中的bought(buy的过去分词)是终止性动词,它不能与表示时间段的短语连用,若要连用,就必须改变结构,可变为:I have had this dictionary for three years.因此在学习中要注意归纳终止性动词变为 延续性动词。常见的终止性动词与...
have got to与have got的意思有什么区别
have got to = have to do .不得不做某事.如:I have got to go.我得走了.have got (现在完成时)已经得到.如:I have got the book.我得到那本书了.
过去完成时与现在完成时的区别
1.I have lived in Thailand for five years. (我目前在泰国已经住了五年了) live(居住)是上面例句的谓语，那么这个动作显然是发生在过去(五年前)，但是一直持续到现在，我们的时间参照点是“现在、当下”。2.I had...
现在完成时和过去完成时有什么区别,怎么区分才好?
eg:When you have finished the magazine,please lend it to me.常用时间状语：1表示到现在为止：already ,yet ,just ,ever, never ,before ,since ,so far, until now ,by now ,up to now.2表示最近：recentl,lately in the past/last few years 3包含现在在内的时间状语：this morning/...
完成时态有哪些形式?
A. have been B. had been C. was D. will be 答案A. 等待的动作由过去开始,持续到现在,应用现在完成时关于since;since的用法主要有两点:一是表示“自从……以来”,二是表示“既然”之意。但如果只了解词的含义,而不了解其用法,在使用时就会造成错误。例如:I have not heard from him since I lived ...
