I should apologize to you for failing to visit you last week, but I've been very busy_____ the past few months.
If only he________ quietly as the doctor instructed, he would be better now.
_______ a report, some 844 animals and plants have disappeared in the last 500 years.
Chinese medicine has amazed many people around the world with its different________ to health.
It is strongly ______ that the machines should be checked every year.
--Can I help you with the heavy bag? --______.