Little _____ that we were watching his every move, so he seemed to be going his own way in this business.[ ]

There is ______ "f" and______"u" in the word "four".

He was beaten by his father because of being naughty____________, he became silent.[ ]

The traffic is too heavyWould you like me to help you 　　　 the street? — That’s very kind of you

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