With all the family members ______ on vacation without him, the boy felt extremely lonely and afraid.
It was the training ____ he had as a young man ____ made him such a good engineer.
Nobody but doctors or nurses and those____ by Dr.Hu ____ to enter the patient’s room.
The owner of the shop asked his assistant to ____ the pears that can be thrown away.
You have worked so hard---you’re____ to pass the exam.
Their loving ____ was discovered by their parents.