The person ________ the murder and he is ________ to be sentenced .
Unfortunately, when I dropped in, Professor Smith ________, so we only had time for a few words.
—Does Liu Hui serve in the army? —No, but he ________ in the army for three years.
I feel sure I ________ her somewhere before.
—Are you a teacher?—I ________, but now I am working in a company.
I ________ your last point — could you say it again?