the experts were now fully convinced that the animal ___a pu

the experts were now fully convinced that the animal ___a puma
1 must be 2 should have been 3 can only be 4 could only have been
请问选择哪一个,及分别说出每个为什么对与错
课文里面有一句话
The experts were fully convinced that the animal was a puma(这是课文原文)
wuzaibianyuan 1年前 已收到3个回答 举报

为你所倾倒 春芽

共回答了13个问题采纳率:92.3% 举报

1 答案有问题.对过去事情的猜测,在表达“过去”事情时,如果强调“肯定是,一定是”的时候,应该用“must have been - - - - ”.
2 再说,句子裏面有了convinced,从句部分就不应该再用“must -- - - ”这样的结构.
3 这套练习题出得不好.

1年前

5

无敌小飞猪_ 幼苗

共回答了276个问题 举报

【答案】 must be 一定是
【解析】课文中原句的意思是:专家非常确定那个动物是美洲狮。
must be 表示非常肯定的猜测
should have been 表示原本应该是,而实际上不是
can only be 只可能是
could only have been 表示过去可能做过某事

》》》》》良师益友伴你行 团队为你解答《《《《...

1年前

2

极度深蓝168 幼苗

共回答了2个问题 举报

是NCE 的课文吧...应该是第一个啊,意思是不确定是不是一定就是PUMA,第二个意思是应该做却没做的,第三个是只能是,第四个和第三个是一个意思
例句:where is she ? she must be at hospital, i saw her cut herself with the knive

1年前

1
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