It may not rain, but you had better take an umbrella__________.
| A.in case | B.as well | C.as least | D.in need | 
  16. ---The farmer president was caught at last.
  ---Really? Where himself?
| A.had hidden | B.has he hidden | C.was he hidden | D.has he been hiding | 
  Turn off the tap please. The water .
| A.was wasted | B.wastes | C.is wasting | D.is wasted | 
  ---I hope you enjoyed the film last night.
  ---How on earth do you know I went to a film? I you.
| A.won’t tell | B.didn’t | C.haven’t told | D.don’t tell | 
  As far as we know, Tom spends at least as much time watching TV as he .
| A.does writing | B.writes | C.writing | D.does to write | 
  . Going out for tea with friends increasingly popular during the past twenty years.
| A.becomes | B.became | C.has become | D.had become | 
Key: C