--- Do you know him?--- Yes, but I can’t remember ________I met him for the first time.A. where B. what C that D. if
—Do you mind my closing the door? It’s a little bit cold in here. —___________.
Lucy couldn’t remember when she met Tom, but she was sure it was on ______Monday when she had ______ music class.
I ______ an old letter while I was searching my drawer.
Before taking the photo ,_______ the focus of the camera.
They were making a plan to help those students _____, which attracted me.