12. Many a student ________ the importance of learning a foreign language. A: have realized B: has realized C: have been realized D: has been realized

I failed in the final examination last term and only then ___________ the importance of studies. A: I realized B: I had realized C: had I realized D: did I realized

I realized______ I said was not exactly______ I meant to say. A: what that, what B: that what, what C: that which, which D: that that, what

It was not until the outbreak of the disease ____ . A: when people realized the importance of health B: thatpeople realized the importance of health C: aspeople realized the importance of health D: when the importance of health has been realized

It was not until the accident happened ______. A: when I realized my carelessness B: that I realized my carelessness C: as I realized my carelessness D: when my carelessness has been realized

______ you were busy, I wouldn't have bothered you with my questions. A: If I realized B: Had I realized C: Did I have realized that D: As I realized

realized niche

6. Only then _____ how much damage had been caused. A: she realized B: she had realized C: had she realized D: did she realize

8. Only then ____ how much damage had been caused. A: had she realized B: she realized C: did she realize D: she had realized

Little ______ that some detectives were watching his every move. A: did he realize B: he has realized C: has he realized D: he realized