— Hasn’t the thief admitted his crime by now?— No, ______ questioned many times.

One theory, ________ suggested by Harvard University, is that humans began cooking their food, thereby releasing nutrients locked in the raw food and reducing the time needed to chew it.

      hot the weather will be tomorrow, we must get the whole project        .

 ____ you dislike ancient buildings, Warrick Castle is worth a visit. 

 —So when did you meet Joan?—It was last Sunday _______ she came to visit my sister.