—When was Tom bitten by a snake?—It was on a Sunday _______ he was taking a trip to the mountainous area.
He has his faults, but _________he is a good student.
I am not a little tired today after giving the room a thorough cleaning and I have never had ______today.
The machine is easy to _______if you follow the instructions.
_____who had arrested him three times for drug-taking.
To help Tom improve his English, I_______ that he take some online courses.