Only when I left my parents for Italy ________ how much I loved them.
A. I realized B. I had realized C. had I realized D. did I realize
The experiment shows that proper amounts of exercise, if _______ regularly, can improve our health.
A. being carried out B. carried out C. carrying out D. to carry out
When I opened the door, I found my father sitting in his chair, completely ______ in the humorous stories he was reading.
A. absorbed B. losing C. attracted D. addicted
______ money, his parents couldn’t send him to university.
A. Lacked B. Lacking of C. Lacked in D. Lacking
It’s very dangerous to _______ these viruses without any protection.
A. be exposed to B. expose to C. expose D. be exposing to
My father is always strict _______ me, so he was very angry _______ my fault on this matter.
A. with; with B. in; for C. with; at D. in; about
