WHEN I ... AT MY SUITCASE, I COULD SEE THAT SOMEBODY ... TO OPEN IT...

8. - DE KIEM TRA BAI SO 1 HKI - LOP 11
Tiếng Anh DE KIEM TRA BAI SO 1 HKI - LOP 11
8. When I

...

at my suitcase, I could see that somebody

...

to open it.a. had looked - tried b. looked - tried c. looked - were trying d. looked - had tried