When my hand touched the letter in my pocket, I realized that I had forgotten ______ it. [ ]

Teachers often tell their students _______ across theroad when the traffic light is red.

I saw a woman running toward me in the dark.Before I could recognise who she was,she had run back in the direction she had come[ ]

Just as too much harmony is tiresome in music,________

I am not a little tired today after giving the room athorough cleaning and I have never had ______today.