They all appeared this song before.
A. to learn
B. to have learned
C. to not have learned
D. not learning from
They all appeared this song before.A. to learnB. to have learnedC. to not have learnedD.
答案:2 悬赏:60 手机版
解决时间 2021-01-04 19:21
- 提问者网友：椧運幽默
- 2021-01-03 18:47
最佳答案
- 五星知识达人网友：一把行者刀
- 2021-01-03 18:54
A. to learn(答案→)B. to have learnedC. to not have learnedD. not learning from解析：此处的appeared意为:看来,后可接不定式.根据后面的before得知,这里要用被动结构 to be learned.
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- 1楼网友：孤独入客枕
- 2021-01-03 19:09
我学会了
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