Giúp em vs em đng cần gấp

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16. It is such a heavy suitcase that I can't carry it.
17. I suggest asking her yourself.
18. When did you see Mary?
19. It took three and a half hours to fly to Moscow.
20. She asked Tom how many Japanese students there were in his class.
21. No member in the family is wiser than Mrs.Smith.
22. He didn't remember, and she didn't either. / He didn’t remember, and neither did she.

23. He denied being there at that time.