when后面接什么时态

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• I usually spend my weekend watching television在这句中usually是一般现在时态,但后面又用现在分词,这句句子是什么时态
• rt定语从句中当time做先行词书上说定语从句中当time做先行词的时候如果表次数那么后面的关系词用that 无论从句是否缺成份,表时间时后用when,但是为什么do you remember the time -----we spent together in last summer 中为什么用的是that
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• All but he and I _am_not___ going to see the film.这个句子的谓语动词用正确了吗?为什么?这是一个什么巨型啊?all but 后面应该接什么谓语动词?
• I ride bicycle go to school和 I go to school by bicycle 是错误的用法吗?by bicycle这里BY 后面不用接ride来表示骑自行车吗?为什么这里没有Be动词啊?小弟只有10分了
• 三层楼高,应该说成是three-storeyed building 还是 three-storey building还是两者都可以呢?turn out 后面接什么 是形容词还有什么
• 这个短语到底用什么时态呀,in the last ten years in China,150million people moved out of poverty .可是一会又在同一教材中看到后面接的是现在完成时,真把我弄糊涂了
• She ____(drop) the tray when I ____(speak) to her dropped spoke为什么后面用的是spoke而不是was speaking
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• SAT语法题,1.The library is (older than it but still just as beautiful as the courthouse.)真确答案为括号中的部分应该改为older than the courthouse but just as beautiful.但是as beautiful后面不加其他的感觉很别扭,不是应该都是as beautiful as ...2.(In similarity with) some other great works,the enduring horror tale Frankenstein was first published anonymously; its author,Mary Shelly,wrote the novel when she was not quite nineteen years old/括号中改成Like,虽然感觉很顺,但是这样没有平行结构的错误吗?为什么不能是Like what happened
• when 后面都跟什么时态,望举例
• I want to be a writer when I.,类似的句子,when后面应该用什么时态?