To keep healthy, you should eat any of the food that is offered on the table _______ it is not well cooked.
My grandfather, whothe World War Two, likes to talk to us about his experience.
I ______ to the lecture that afternoon, but I ______ a bit ill.
She refused to offer any help, which quite ______ all the people present.
He asked ______ for the piano.
----How many times have you been to China? --- In fact, it is the third time that I __________ here.