Before you ______ the design of this product, you need to study the market carefully. [ ]

Where is Grace–She _____ inthe yard.

When you get your paper back, pay special attention to ______ have been marked

(2014·河南豫北三校高三下学期联考)—May I go and play with Dick this afternoon，Mum?—No，you can’t go out________your work is being done

She ______ very hard since she came to our school.