this book_____ you bought in the bookstore—No, mine is yellow. It _____ Sally, I think.

Is this the reason______ at the meeting for his carelessness in his work

The best way to carry out big projects is to force them into your _______. Spare time doesn’t appear from nowhere and you need to create it with efforts.

What are you going to give your mother forher birthday—I’m not sure.But I’ll buy her ________.

It is not always easy for the public to see _______ use a new invention can be of to human life