求救!The retired professor,___in his new booThe retired professor,___in his new book in the past three years ,hasn't realized the decline in his health.A.involved B.being involved C.having involved I like getting up early in summer.The morning air
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![求救!The retired professor,___in his new booThe retired professor,___in his new book in the past three years ,hasn't realized the decline in his health.A.involved B.being involved C.having involved I like getting up early in summer.The morning air](/uploads/image/z/10633752-0-2.jpg?t=%E6%B1%82%E6%95%91%21The+retired+professor%2C___in+his+new+booThe+retired+professor%2C___in+his+new+book+in+the+past+three+years+%2Chasn%27t+realized+the+decline+in+his+health.A.involved+B.being+involved+C.having+involved+I+like+getting+up+early+in+summer.The+morning+air)
求救!The retired professor,___in his new booThe retired professor,___in his new book in the past three years ,hasn't realized the decline in his health.A.involved B.being involved C.having involved I like getting up early in summer.The morning air
求救!The retired professor,___in his new boo
The retired professor,___in his new book in the past three years ,hasn't realized the decline in his health.A.involved B.being involved C.having involved
I like getting up early in summer.The morning air is so good____.这里为什么填to breath而不是 to be breathed呢?空气不应该是被吸吗?
求救!The retired professor,___in his new booThe retired professor,___in his new book in the past three years ,hasn't realized the decline in his health.A.involved B.being involved C.having involved I like getting up early in summer.The morning air
这里是物体本身的属性 空气的属性就是被呼吸 所以用to do
比如 i have much homework to do
不用to be done吧