His parents were teachers in that school, _______ lost their lives in order to save their students in the earthquake.
—What about the result of your final examination? —Not so bad. Not so good as my parents expected, ________.
However, they can hardly blame me; it is ________ their own fault.
Invention can be ________ as it may suddenly begin just by noticing something usual.
—You don't seem to be quite yourself today. What's wrong? —Oh, I'm suffering from a cold. Nothing serious, ________.
—How do you like your new roommate? —He is too ________. He never shares his snacks with me.