Complete the following sentences, using the words given in brackets: 1) I that it was a mistake to let him go. (can ’ t help) 2) After drinking heavily at the New Year ’ s party, the next morning with a painful headache. ( waken) 3) His classmates tried to swimming across the lake, but he did not listen. (dissuade) 4) After studying Unit One, we all our study habits. (set out) 5) I recognized him as a friend of my father ’ s whom I once or twice. 6) Of all American cities, San Francisco is considered by many to be beautiful. (by far)