1.--The new machine ____last month is very popular now.(正解：invented,错解：was invented)2.Can I go out to play after my homework ____?(正解：was finished 错解：is finished)3.The song____by Jay Chou is very popular with young people.(正

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1.--The new machine ____last month is very popular now.(正解：invented,错解：was invented)2.Can I go out to play after my homework ____?(正解：was finished 错解：is finished)3.The song____by Jay Chou is very popular with young people.(正
1.--The new machine ____last month is very popular now.(正解：invented,错解：was invented)
2.Can I go out to play after my homework ____?(正解：was finished 错解：is finished)
3.The song____by Jay Chou is very popular with young people.(正：sung,错：sang)
4.-Why not ask your father for help?
-He is not at home.If he___,I____.(正：were,would错：is will)
5Could you please ask George if he___to plant trees with us?(正：will go错：went)

1.--The new machine ____last month is very popular now.(正解：invented,错解：was invented)2.Can I go out to play after my homework ____?(正解：was finished 错解：is finished)3.The song____by Jay Chou is very popular with young people.(正
1正解是过去分词 作定语
错 解 是谓语形式 本句已经有谓语
如果 用谓语形式 句子应是
The new machine was invented last month ,which is very popular now
2你的正解是错的 错解是对的
答案应该是 一般现在时
主句是一般将来时或祈使句或含情态动词时 时间状语从句 用一般现在时
故答案 是is finished
3道理同第一题 一样
4这是与现在情况 相反 的虚拟语气
if从句 用过去时 be动词 必须用were 主句 用过去将来时
错解 是真实句 因为有前句 故用真实条件句 错
5这是宾语从句 事情尚未发生 故用一般将来时

1.Is 是谓语，invented代表的是被使用
2.出去玩在功课完成之后，说明功课已经被完成了，是过去的。
3.sung是被使用的意思
4.were，would是虚拟语气
5.will go是将来时，种树是还没完成的。

1. 这里invent是过分分词的用法修饰the new machine，
过去分词表被动。
The new machine invented= the new machine that was invented
如果你用了was又不是宾语从句，本句中即出现了两个动词。
2. go out to play是将来的动作还没有实施，从句部分用现在时...

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1. 这里invent是过分分词的用法修饰the new machine，
过去分词表被动。
The new machine invented= the new machine that was invented
如果你用了was又不是宾语从句，本句中即出现了两个动词。
2. go out to play是将来的动作还没有实施，从句部分用现在时主句部分表示现在以后的将来。
3. 仍旧是过去分词，表被动的是过分而不是过去时，sing-sang-sung。应选用sung
4. 这里是虚拟时态的用法。由于父亲现实中是不在家的所以这里的if从句是一个错误的假象，
虚拟时态中从句要向过去推一格，原本应是is，那就变成了were（was必须变were）；
主句中应用would/should之类情态动词的过去时，所以变成了would。
5. 去植树这件事情是还没有发生了，这里楼主是句意理解错误了。
本句的意思是：你可以去问下乔治他跟不跟我们一起植树么？
有问题继续问，
不清楚的也请追问，
希望能够帮到楼主哈~
望楼主采纳

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