—Is he interested in sailing?— Of course! In fact he is known ________ as the most daring sailor on the seas.
28.Kids are often told to remain ______ they are and wait for their parents if they get lost.
27.—What did you ______ while in college? —English, politics and economics.
26.I called Nancy many times but couldn't get through.Someone ______ on the phone all the time!
25.How convenient the public transportation is! There ______ be any difficulty traveling around.
24.—I just heard you had an adventure in the desert. —We lost our way and ______ made matters worse was that our jeep broke down.