giúp mình với mình đang cần gấp lắmm

=> You 9. I am sure that John is not the thief. (can't) => I am 10. I'm sure you are very tired after working so hard. (must) => You 11. Perhaps Susan know the address. (may) => Susan 12. The report must be on my desk tomorrow. (has) => The report 13. It was not necessary for Nancy to ...