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24.51 Present-Tense and Past-Tense Verbs 262023-07 3 25.50 Kinds of Sentences 342023-07 4 26.49 Synonym and Antonym 432023-07 5 27.48 The Cold War 402023-07 6 28.47 The Great Depression 412023-07 7 29.45 World War I 212023-07 8 30.44 The Civil War 282023-07 9 31.43 The Mexican War ...
解析 exercise for the present continuous tense(rewrite the sentences using "now") 1.l am watching tv now.2.he isn"t putting a picture on the wall now.3.they aren"t swimming in the river now.4.is he writing...结果一 题目 英语题目 exercise for the present continuous tense(rewrite the...
答案 答案见解析 解析 Present Tense Past Tense I/You/We/They She/He/It ex. cry cries cried 1 open opens opened 2 play plays played 3 wash washes washed 4 close closes closed 5 study studies studied 第三人称单数变化规则:大多数动词在词尾加s,如 open-opens。 以辅音字母加y结尾的,要先将y...
Answers to the Present and Past Perfect Tense Practice. Home>English Verb Tenses> Present and Past Perfect Tense Practice. Didn't find what you needed? Explain what you want in the search box below. (For example, cognates, past tense practice, or 'get along with.') Click to see the rel...
1)Past tenseThe demand for energy dropped steadily between 1985 and 1990 from 5 units of energy to approximately 2 units.2)Present tenseThe demand for energy dropps steadily between 5 units of energy to approximately 2 units.3)past participleThe demand for energy has dropped steadily between ...
英语题目exercise for the present continuous tense(rewrite the sentences using "now")1.l watch tv every day.2.he doesn"t put a picture on the wall.3.they don"t swim in the river.4.did he write a letter just now?5.they didn"t have supper at school.
a. The form of Present Perfect Continuous Tense is- has/have + been + verb + ing Read More : What is Future Tense?Get Examples and Practice Exercise FUTURE TENSE 1) Simple Future Tense- Indicates an action that will take place after the present time and that has no real connection with...
past perfect tense (过去完成时 )过去完成时表示一个动作或状态在过去某一时间或动作之前已经完成或结束,也可能是早已完成或结束,即“过去的过去”;也可以指过去的动作延续到过去的某个时刻. 过去完成时由“had +动词的过去分词”构成, had通常用于任何人称.过去完成时主要有以下几点用法 1. 表示过去某一时间或...
present perfect tense, past perfect tense现在完成时和过去完成时用法的区别在于，看他们有无两个表过去的时间，若有，就用过去完成时！1.现在完成时表示过去发生某动作从过去一直持续到现在（将来还有可能继续下去）。常和for＋时间段和since＋时间点连用。I have studied English for 3 years.( 从...