I tried to call on you last week but your dog simply ____ not let me come through the gate.

The teacher is doing a survey about _____ Japanese．

It was only quite recently, however, ______ I began to understand how much my parents love me.

I usually _______ a bike _________ fromMonday to Friday.

Oh, boy, why are you just playing games all day? Can’t you find something ______ doing at all?