If it ________ for the heavy rain then, we would have arrived here ahead of time.
If John Lennon and Paul McCartney _______ , the pop music of today ________ very different.
_ __ __, I have to put it away and focus my attention on study this week.
The chair is _________ .Please take it away.
The printer is of good quality. If it ______ break down within the first year, we would repair it at our expense.
His tired face suggested that he ________ really tired after the long walk, and I suggested that he ______ a good rest.