He gave himself a new name to hide his ____ when he went to carry out the secret task.
Most of us found ______ difficult to finish the work in such a short time.
—Do you know where Mary is?—No, I don’t. I ______ her since last Sunday night.
You still go to the gym every day, ______ you?
The boy ______ is standing at the school gate is our monitor.
Alice wants to become ______ singer when she grows up.