Many manufacturers were accused of concentrating too heavily on cost reduction, often at the ______ of the quality of their products.
——Hi, Mike.Any idea where Mary is? ——She ____ in the classroom.I saw her there just now.
.There’s no _____ from my bedroom window except fro some factory chimneys.
.—Have you thought of the topic for the composition? — Not yet.I _____ it very carefully, but I haven’t decided.
The most important thing about cotton in history is _____ part that it played in ____ Industrial Revolution.
_____ and happy, Tom stood up and accepted the prize.