These three college students are real heroes because they risked ______their own lives in order to save the drowning boys in the water.A.having lost B:to lose C.losing D.of losing是risk doing形式,为啥选a不行,不是过去发生的事吗
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![These three college students are real heroes because they risked ______their own lives in order to save the drowning boys in the water.A.having lost B:to lose C.losing D.of losing是risk doing形式,为啥选a不行,不是过去发生的事吗](/uploads/image/z/9511666-34-6.jpg?t=These+three+college+students+are+real+heroes+because+they+risked+______their+own+lives+in+order+to+save+the+drowning+boys+in+the+water.A.having+lost+B%3Ato+lose+C.losing+D.of+losing%E6%98%AFrisk+doing%E5%BD%A2%E5%BC%8F%2C%E4%B8%BA%E5%95%A5%E9%80%89a%E4%B8%8D%E8%A1%8C%2C%E4%B8%8D%E6%98%AF%E8%BF%87%E5%8E%BB%E5%8F%91%E7%94%9F%E7%9A%84%E4%BA%8B%E5%90%97)
These three college students are real heroes because they risked ______their own lives in order to save the drowning boys in the water.A.having lost B:to lose C.losing D.of losing是risk doing形式,为啥选a不行,不是过去发生的事吗
These three college students are real heroes because they risked ______their own lives in order to save the drowning boys in the water.
A.having lost B:to lose C.losing D.of losing
是risk doing形式,为啥选a不行,不是过去发生的事吗
These three college students are real heroes because they risked ______their own lives in order to save the drowning boys in the water.A.having lost B:to lose C.losing D.of losing是risk doing形式,为啥选a不行,不是过去发生的事吗
因为如果使用完成时态,不能用risk having done,而应该用 have risked doing这样的形式.
这里只要用一般过去时就可以了。
如果要用完成时,那也是在risk前面加had就好