Tell me _______how it cgo into details.

I have been keeping the portrait________I can see it every day,as it always reminds me of my childhood in Paris[ ]

To enjoy the scenery, Sara would spend long hours on the train _______ travel by air.[ ]

What do you think made Mary so upset——– _________her new bicycle.

They wouldn’t agree to sell the house to us at the same price ______ they had promised, ______ was rather disappointing.