Giúp em
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21. Don't let children pay with knives _____________ may hurt _____________
22. Mary marries an old friend of _____________ (I)
23. The bus usually leaves at 8.15 , but today _____________ was late.
24. __________ are Lucy and Ann _________ are very close friends of __________ (they/they/I)
25. Daniel is doing _____________ homework.
26. I have lost _____________ keys. (I)
27. Did you brush _____________ teeth? (you)
28. Anna and Lukas like to ride _____________ bikes. (they)
29. Carmen is looking for _____________ favourite skirt. (she)
30. We would like to sit at _____________ usual table please. (we)