—Will you stay for lunch?—Sorry, ________. My brother is coming to see me.
--- Who should be responsible for the accident?--- The boss, not the workers. They just carried out the order _______.
His health is improving day by day. It is quite ______ that the medicine has a good effect on his disease.
-- You seem to be burning yourself out with so much work!-- ______. I'm dying for a thorough rest and a good workout.
The policemen ______ the house again and again, and finally found the evidence.
Nobody but doctors, nurses or those ______ by Dr. Hu ______ to enter the patient's room.