I didn’t quite follow him because he explained the theory _____that is too abstract for me.
Beneath our feet ______ that our life depends on for food and clothing.
_______, Jack couldn’t get the door open. He had to dial 119.
The skier’s red clothes stood out clearly ___________ the snow.
The teacher suggested the dictionary ___________ at once.
There was a teapot shaped like a duck, out of ______ mouth the tea was supposed to come.