Have you seen ____ pen I left it here this morning .—Is it _____ black one I think I saw it somewhere.

If we don’t start now, we must risk ____ the train.

－When was the poor boy born －His parents died early. Some villagers only know he was born _________ a cold winter morning.

The treatment will continue until the patient reaches the point ________ he can walk correctly and safely.

Have you watched the program“Where Are We Going, Dad” It seems very _________.— I agree with you. Many of us like it very much.