living things are dying out quickly.Let's ask _____ destroying them in the past years.A.what part people have been playingB.what part people have played in为什么用完成进行时呢,in the past years不是应该选择现在完成时吗,而且强
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![living things are dying out quickly.Let's ask _____ destroying them in the past years.A.what part people have been playingB.what part people have played in为什么用完成进行时呢,in the past years不是应该选择现在完成时吗,而且强](/uploads/image/z/7416269-53-9.jpg?t=living+things+are+dying+out+quickly.Let%27s+ask+_____+destroying+them+in+the+past+years.A.what+part+people+have+been+playingB.what+part+people+have+played+in%E4%B8%BA%E4%BB%80%E4%B9%88%E7%94%A8%E5%AE%8C%E6%88%90%E8%BF%9B%E8%A1%8C%E6%97%B6%E5%91%A2%2Cin+the+past+years%E4%B8%8D%E6%98%AF%E5%BA%94%E8%AF%A5%E9%80%89%E6%8B%A9%E7%8E%B0%E5%9C%A8%E5%AE%8C%E6%88%90%E6%97%B6%E5%90%97%2C%E8%80%8C%E4%B8%94%E5%BC%BA)
living things are dying out quickly.Let's ask _____ destroying them in the past years.A.what part people have been playingB.what part people have played in为什么用完成进行时呢,in the past years不是应该选择现在完成时吗,而且强
living things are dying out quickly.Let's ask _____ destroying them in the past years.
A.what part people have been playing
B.what part people have played in
为什么用完成进行时呢,in the past years不是应该选择现在完成时吗,而且强调造成的影响.还有是不是有这个词组play a part (in)doing sth呢,
living things are dying out quickly.Let's ask _____ destroying them in the past years.A.what part people have been playingB.what part people have played in为什么用完成进行时呢,in the past years不是应该选择现在完成时吗,而且强
现在完成进行时表示一直持续到现在,而且仍然有影响.
前半句给你提示,生物正在快速的灭绝,是现在进行时哦,现在完成时已经完成,对现在无影响!