Can you imagine the great difficulty he had ________ his driving test last week?
Can you lend me the novel________ the other day?
Mr. White as well as his friends ________ a number of countries in the past few years.
Helen always helps her mother even though going to school_______ most of her day.
She will fly to Washington, ________ she can enjoy herself.
These experiences ______ me _____ the drug’s harmful effects.