How long does Kitty spend on her homework?—________.

During the entrance exam，there are___________ parents waiting for their children outside the test centre.

What about _____ English-Chinese dictionary on the bookshelf?—In my opinion, it’s _____ useful tool book for my English learning.

Will you buy this nice camera, Henry?– No. It’s too expensive. I can’t ________ it.

______ are you buying so much food?—Because your uncle is coming for supper.