I think it was George who said this, ____ ?A don’t I B. doesn’t he C. didn’t he D. wasn’t it
-I've studied gardening as a hobby. Could I make some suggestions? -________.
The pianos in the other shop will be______,but______.
From facts,scientists have ________that more energy is being absorbed from the sun,throwing the earth's energy “out of balance”.
A number of students ________the exam so far,but the number of the students who failed ________great.
The traditional ____________to dealing with complex problems is to break them down into smaller,more easily managed problems.