he was able to return.this means he ___ 1 could if he wanted to 2 might 3 could have 4 did选择哪一个,及分别说出每个为什么对与错
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![he was able to return.this means he ___ 1 could if he wanted to 2 might 3 could have 4 did选择哪一个,及分别说出每个为什么对与错](/uploads/image/z/9140649-33-9.jpg?t=he+was+able+to+return.this+means+he+___+1+could+if+he+wanted+to+2+might+3+could+have+4+did%E9%80%89%E6%8B%A9%E5%93%AA%E4%B8%80%E4%B8%AA%2C%E5%8F%8A%E5%88%86%E5%88%AB%E8%AF%B4%E5%87%BA%E6%AF%8F%E4%B8%AA%E4%B8%BA%E4%BB%80%E4%B9%88%E5%AF%B9%E4%B8%8E%E9%94%99)
he was able to return.this means he ___ 1 could if he wanted to 2 might 3 could have 4 did选择哪一个,及分别说出每个为什么对与错
he was able to return.this means he ___ 1 could if he wanted to 2 might 3 could have 4 did
选择哪一个,及分别说出每个为什么对与错
he was able to return.this means he ___ 1 could if he wanted to 2 might 3 could have 4 did选择哪一个,及分别说出每个为什么对与错
4.was able to do sth意思是成功做到了某事,在这里的意思是he succeeded in returning or he managed to return.所以选4.意思是he returned.
不要用情态动词表示可能性或虚拟,呈现事实.
选择3.could have
很明显,这是一个虚拟语气,他本可以回来的。
虚拟语气:could/should/would+have/has done sth. 本可以做什么的,可是没能做。
希望对你有帮助。
1是对的。 只要他愿意,他可以帮到。。。
2。可能
3。可能已经做。。。
4。做了