• 2022-05-27
    Unluckily, the tree species they selected couldn’t _______ the drought.
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      5.He couldn't get / couldn't have got through when he tried to call. A: couldn't get B: couldn't have got C: 无 D: 无

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      This plan couldn’t help, _________ again, it probably couldn’t hurt.

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      Study the tree species mentioned in Text A and fill in the blanks with the words given below. Change the form if necessary.olive tree; poplar; pine; Chinese fir; oak; teak; eucalyptus; Pinus patulaIn the Chinese culture, the crane and the __________ tree symbolize longevity or eternal youth.

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      The story was so funny that we _________. A: couldn't help laugh B: can't but laugh C: couldn't help laughing D: couldn't help but to

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      If Tom______too careless in the final exam, he______a make-up exam. A: was; couldn’t have taken B: hadn’t been; couldn’t take C: hadn’t been; couldn’t have taken D: have not been; couldn’t have taken