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用 I have done 或I did 填空。 Emily _______ (not/earn) so much last year.

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用 I have done 或I did 填空。 A: _________ (you/see)Lisa recently? B: Yes,I _______ (see) her a few days ago.

用 I have done 或I did 填空。 ________ (you/go)to the cinema last night?

用 I have done 或I did 填空。 I don't know Karen's husband.I ________ (never/meet) him.

实验室内土粒的相对密度一般用()法测定,土的含水率一般用()法测定,土地重度一般用()法测定。

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