In ______ review of 44 studies, American researchers found that men and women who ate six key foods daily cut the risk of ______heart disease by 76%.
______ world’s largest retailer, Wal-Mart, has opened its _____ third store in Beijing, which means the firm now has 52 stores in China.
—We are planning to have a casual get-together this Saturday or Sunday. Are you coming?— ________. I’ve got rather a full day this weekend.
At the sight of the policeman _____from behind the door.
---Is there anything else I can do for you, Jack? --- No, thanks. I really appreciate ______ when you lent all your notes to me before the exam.
It is uncertain ______ side effects these weight-loss drugs will bring about, although hundreds of thousands of patients have taken it.